=head1 NAME
-EVP_CIPHER_CTX_new, EVP_CIPHER_CTX_reset, EVP_CIPHER_CTX_free,
-EVP_EncryptInit_ex, EVP_EncryptUpdate, EVP_EncryptFinal_ex,
-EVP_DecryptInit_ex, EVP_DecryptUpdate, EVP_DecryptFinal_ex,
-EVP_CipherInit_ex, EVP_CipherUpdate, EVP_CipherFinal_ex,
-EVP_CIPHER_CTX_set_key_length, EVP_CIPHER_CTX_ctrl, EVP_EncryptInit,
-EVP_EncryptFinal, EVP_DecryptInit, EVP_DecryptFinal,
-EVP_CipherInit, EVP_CipherFinal, EVP_get_cipherbyname,
-EVP_get_cipherbynid, EVP_get_cipherbyobj, EVP_CIPHER_nid,
-EVP_CIPHER_block_size, EVP_CIPHER_key_length, EVP_CIPHER_iv_length,
-EVP_CIPHER_flags, EVP_CIPHER_mode, EVP_CIPHER_type, EVP_CIPHER_CTX_cipher,
-EVP_CIPHER_CTX_nid, EVP_CIPHER_CTX_block_size, EVP_CIPHER_CTX_key_length,
-EVP_CIPHER_CTX_iv_length, EVP_CIPHER_CTX_get_app_data,
-EVP_CIPHER_CTX_set_app_data, EVP_CIPHER_CTX_type, EVP_CIPHER_CTX_flags,
-EVP_CIPHER_CTX_mode, EVP_CIPHER_param_to_asn1, EVP_CIPHER_asn1_to_param,
-EVP_CIPHER_CTX_set_padding, EVP_enc_null, EVP_des_cbc, EVP_des_ecb,
-EVP_des_cfb, EVP_des_ofb, EVP_des_ede_cbc, EVP_des_ede, EVP_des_ede_ofb,
-EVP_des_ede_cfb, EVP_des_ede3_cbc, EVP_des_ede3, EVP_des_ede3_ofb,
-EVP_des_ede3_cfb, EVP_desx_cbc, EVP_rc4, EVP_rc4_40, EVP_rc4_hmac_md5,
-EVP_idea_cbc, EVP_idea_ecb, EVP_idea_cfb, EVP_idea_ofb, EVP_rc2_cbc,
-EVP_rc2_ecb, EVP_rc2_cfb, EVP_rc2_ofb, EVP_rc2_40_cbc, EVP_rc2_64_cbc,
-EVP_bf_cbc, EVP_bf_ecb, EVP_bf_cfb, EVP_bf_ofb, EVP_cast5_cbc,
-EVP_cast5_ecb, EVP_cast5_cfb, EVP_cast5_ofb, EVP_rc5_32_12_16_cbc,
-EVP_rc5_32_12_16_ecb, EVP_rc5_32_12_16_cfb, EVP_rc5_32_12_16_ofb,
-EVP_aes_128_cbc, EVP_aes_128_ecb, EVP_aes_128_cfb, EVP_aes_128_ofb,
-EVP_aes_192_cbc, EVP_aes_192_ecb, EVP_aes_192_cfb, EVP_aes_192_ofb,
-EVP_aes_256_cbc, EVP_aes_256_ecb, EVP_aes_256_cfb, EVP_aes_256_ofb,
-EVP_aes_128_gcm, EVP_aes_192_gcm, EVP_aes_256_gcm,
-EVP_aes_128_ccm, EVP_aes_192_ccm, EVP_aes_256_ccm,
-EVP_aes_128_cbc_hmac_sha1, EVP_aes_256_cbc_hmac_sha1,
-EVP_aes_128_cbc_hmac_sha256, EVP_aes_256_cbc_hmac_sha256,
-EVP_chacha20, EVP_chacha20_poly1305 - EVP cipher routines
+EVP_CIPHER_CTX_new,
+EVP_CIPHER_CTX_reset,
+EVP_CIPHER_CTX_free,
+EVP_EncryptInit_ex,
+EVP_EncryptUpdate,
+EVP_EncryptFinal_ex,
+EVP_DecryptInit_ex,
+EVP_DecryptUpdate,
+EVP_DecryptFinal_ex,
+EVP_CipherInit_ex,
+EVP_CipherUpdate,
+EVP_CipherFinal_ex,
+EVP_CIPHER_CTX_set_key_length,
+EVP_CIPHER_CTX_ctrl,
+EVP_EncryptInit,
+EVP_EncryptFinal,
+EVP_DecryptInit,
+EVP_DecryptFinal,
+EVP_CipherInit,
+EVP_CipherFinal,
+EVP_get_cipherbyname,
+EVP_get_cipherbynid,
+EVP_get_cipherbyobj,
+EVP_CIPHER_nid,
+EVP_CIPHER_block_size,
+EVP_CIPHER_key_length,
+EVP_CIPHER_iv_length,
+EVP_CIPHER_flags,
+EVP_CIPHER_mode,
+EVP_CIPHER_type,
+EVP_CIPHER_CTX_cipher,
+EVP_CIPHER_CTX_nid,
+EVP_CIPHER_CTX_block_size,
+EVP_CIPHER_CTX_key_length,
+EVP_CIPHER_CTX_iv_length,
+EVP_CIPHER_CTX_get_app_data,
+EVP_CIPHER_CTX_set_app_data,
+EVP_CIPHER_CTX_type,
+EVP_CIPHER_CTX_flags,
+EVP_CIPHER_CTX_mode,
+EVP_CIPHER_param_to_asn1,
+EVP_CIPHER_asn1_to_param,
+EVP_CIPHER_CTX_set_padding,
+EVP_enc_null
+- EVP cipher routines
=head1 SYNOPSIS
All algorithms have a fixed key length unless otherwise stated.
+Refer to L<SEE ALSO> for the full list of ciphers available through the EVP
+interface.
+
=over 4
=item EVP_enc_null()
Null cipher: does nothing.
-=item EVP_aes_128_cbc(), EVP_aes_128_ecb(), EVP_aes_128_cfb(), EVP_aes_128_ofb()
-
-AES with a 128-bit key in CBC, ECB, CFB and OFB modes respectively.
-
-=item EVP_aes_192_cbc(), EVP_aes_192_ecb(), EVP_aes_192_cfb(), EVP_aes_192_ofb()
-
-AES with a 192-bit key in CBC, ECB, CFB and OFB modes respectively.
-
-=item EVP_aes_256_cbc(), EVP_aes_256_ecb(), EVP_aes_256_cfb(), EVP_aes_256_ofb()
-
-AES with a 256-bit key in CBC, ECB, CFB and OFB modes respectively.
-
-=item EVP_des_cbc(), EVP_des_ecb(), EVP_des_cfb(), EVP_des_ofb()
-
-DES in CBC, ECB, CFB and OFB modes respectively.
-
-=item EVP_des_ede_cbc(), EVP_des_ede(), EVP_des_ede_ofb(), EVP_des_ede_cfb()
+=back
-Two key triple DES in CBC, ECB, CFB and OFB modes respectively.
+=head1 AEAD Interface
-=item EVP_des_ede3_cbc(), EVP_des_ede3(), EVP_des_ede3_ofb(), EVP_des_ede3_cfb()
+The EVP interface for Authenticated Encryption with Associated Data (AEAD)
+modes are subtly altered and several additional I<ctrl> operations are supported
+depending on the mode specified.
-Three key triple DES in CBC, ECB, CFB and OFB modes respectively.
+To specify additional authenticated data (AAD), a call to EVP_CipherUpdate(),
+EVP_EncryptUpdate() or EVP_DecryptUpdate() should be made with the output
+parameter B<out> set to B<NULL>.
-=item EVP_desx_cbc()
+When decrypting, the return value of EVP_DecryptFinal() or EVP_CipherFinal()
+indicates whether the operation was successful. If it does not indicate success,
+the authentication operation has failed and any output data B<MUST NOT> be used
+as it is corrupted.
-DESX algorithm in CBC mode.
+=head2 GCM and OCB Modes
-=item EVP_rc4()
+The following I<ctrl>s are supported in GCM and OCB modes.
-RC4 stream cipher. This is a variable key length cipher with default key length 128 bits.
+=over 4
-=item EVP_rc4_40()
+=item EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_IVLEN, ivlen, NULL)
-RC4 stream cipher with 40 bit key length.
-This is obsolete and new code should use EVP_rc4()
-and the EVP_CIPHER_CTX_set_key_length() function.
+Sets the IV length. This call can only be made before specifying an IV. If
+not called a default IV length is used.
-=item EVP_idea_cbc() EVP_idea_ecb(), EVP_idea_cfb(), EVP_idea_ofb()
+For GCM AES and OCB AES the default is 12 (i.e. 96 bits). For OCB mode the
+maximum is 15.
-IDEA encryption algorithm in CBC, ECB, CFB and OFB modes respectively.
+=item EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_GET_TAG, taglen, tag)
-=item EVP_rc2_cbc(), EVP_rc2_ecb(), EVP_rc2_cfb(), EVP_rc2_ofb()
+Writes C<taglen> bytes of the tag value to the buffer indicated by C<tag>.
+This call can only be made when encrypting data and B<after> all data has been
+processed (e.g. after an EVP_EncryptFinal() call).
-RC2 encryption algorithm in CBC, ECB, CFB and OFB modes respectively. This is a variable key
-length cipher with an additional parameter called "effective key bits" or "effective key length".
-By default both are set to 128 bits.
+For OCB, C<taglen> must either be 16 or the value previously set via
+B<EVP_CTRL_AEAD_SET_TAG>.
-=item EVP_rc2_40_cbc(), EVP_rc2_64_cbc()
+=item EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_TAG, taglen, tag)
-RC2 algorithm in CBC mode with a default key length and effective key length of 40 and 64 bits.
-These are obsolete and new code should use EVP_rc2_cbc(), EVP_CIPHER_CTX_set_key_length() and
-EVP_CIPHER_CTX_ctrl() to set the key length and effective key length.
+Sets the expected tag to C<taglen> bytes from C<tag>.
+The tag length can only be set before specifying an IV.
+C<taglen> must be between 1 and 16 inclusive.
-=item EVP_bf_cbc(), EVP_bf_ecb(), EVP_bf_cfb(), EVP_bf_ofb()
+For GCM, this call is only valid when decrypting data.
-Blowfish encryption algorithm in CBC, ECB, CFB and OFB modes respectively. This is a variable key
-length cipher.
+For OCB, this call is valid when decrypting data to set the expected tag,
+and before encryption to set the desired tag length.
-=item EVP_cast5_cbc(), EVP_cast5_ecb(), EVP_cast5_cfb(), EVP_cast5_ofb()
+In OCB mode, calling this before encryption with C<tag> set to C<NULL> sets the
+tag length. If this is not called prior to encryption, a default tag length is
+used.
-CAST encryption algorithm in CBC, ECB, CFB and OFB modes respectively. This is a variable key
-length cipher.
+For OCB AES, the default tag length is 16 (i.e. 128 bits). It is also the
+maximum tag length for OCB.
-=item EVP_rc5_32_12_16_cbc(), EVP_rc5_32_12_16_ecb(), EVP_rc5_32_12_16_cfb(), EVP_rc5_32_12_16_ofb()
+=back
-RC5 encryption algorithm in CBC, ECB, CFB and OFB modes respectively. This is a variable key length
-cipher with an additional "number of rounds" parameter. By default the key length is set to 128
-bits and 12 rounds.
+=head2 CCM Mode
-=item EVP_aes_128_gcm(), EVP_aes_192_gcm(), EVP_aes_256_gcm()
+The EVP interface for CCM mode is similar to that of the GCM mode but with a
+few additional requirements and different I<ctrl> values.
-AES Galois Counter Mode (GCM) for 128, 192 and 256 bit keys respectively.
-These ciphers require additional control operations to function correctly: see
-the L</GCM and OCB Modes> section below for details.
+For CCM mode, the total plaintext or ciphertext length B<MUST> be passed to
+EVP_CipherUpdate(), EVP_EncryptUpdate() or EVP_DecryptUpdate() with the output
+and input parameters (B<in> and B<out>) set to B<NULL> and the length passed in
+the B<inl> parameter.
-=item EVP_aes_128_ocb(void), EVP_aes_192_ocb(void), EVP_aes_256_ocb(void)
+The following I<ctrl>s are supported in CCM mode.
-Offset Codebook Mode (OCB) for 128, 192 and 256 bit keys respectively.
-These ciphers require additional control operations to function correctly: see
-the L</GCM and OCB Modes> section below for details.
+=over 4
-=item EVP_aes_128_ccm(), EVP_aes_192_ccm(), EVP_aes_256_ccm()
+=item EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_TAG, taglen, tag)
-AES Counter with CBC-MAC Mode (CCM) for 128, 192 and 256 bit keys respectively.
-These ciphers require additional control operations to function correctly: see
-CCM mode section below for details.
+This call is made to set the expected B<CCM> tag value when decrypting or
+the length of the tag (with the C<tag> parameter set to NULL) when encrypting.
+The tag length is often referred to as B<M>. If not set a default value is
+used (12 for AES).
-=item EVP_chacha20()
+=item EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_CCM_SET_L, ivlen, NULL)
-The ChaCha20 stream cipher. The key length is 256 bits, the IV is 96 bits long.
+Sets the CCM B<L> value. If not set a default is used (8 for AES).
-=item EVP_chacha20_poly1305()
+=item EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_IVLEN, ivlen, NULL)
-Authenticated encryption with ChaCha20-Poly1305. Like EVP_chacha20() the key is
-256 bits and the IV is 96 bits. This supports additional authenticated
-data (AAD) and produces a 128 bit authentication tag. See the
-L</GCM and OCB Modes> section for more information.
+Sets the CCM nonce (IV) length. This call can only be made before specifying an
+nonce value. The nonce length is given by B<15 - L> so it is 7 by default for
+AES.
=back
-=head1 GCM and OCB Modes
+=head2 ChaCha20-Poly1305
-For GCM and OCB mode ciphers the behaviour of the EVP interface is subtly
-altered and several additional ctrl operations are supported.
+The following I<ctrl>s are supported for the ChaCha20-Poly1305 AEAD algorithm.
-To specify any additional authenticated data (AAD) a call to EVP_CipherUpdate(),
-EVP_EncryptUpdate() or EVP_DecryptUpdate() should be made with the output
-parameter B<out> set to B<NULL>.
-
-When decrypting the return value of EVP_DecryptFinal() or EVP_CipherFinal()
-indicates if the operation was successful. If it does not indicate success
-the authentication operation has failed and any output data B<MUST NOT>
-be used as it is corrupted.
-
-The following ctrls are supported in both GCM and OCB modes:
+=over 4
- EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_IVLEN, ivlen, NULL);
+=item EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_IVLEN, ivlen, NULL)
-Sets the IV length: this call can only be made before specifying an IV. If
-not called a default IV length is used. For GCM AES and OCB AES the default is
-12 (i.e. 96 bits). For OCB mode the maximum is 15.
+Sets the nonce length. This call can only be made before specifying the nonce.
+If not called a default nonce length of 12 (i.e. 96 bits) is used. The maximum
+nonce length is 16 (B<CHACHA_CTR_SIZE>, i.e. 128-bits).
- EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_GET_TAG, taglen, tag);
+=item EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_GET_TAG, taglen, tag)
-Writes B<taglen> bytes of the tag value to the buffer indicated by B<tag>.
+Writes C<taglen> bytes of the tag value to the buffer indicated by C<tag>.
This call can only be made when encrypting data and B<after> all data has been
-processed (e.g. after an EVP_EncryptFinal() call). For OCB mode the taglen must
-either be 16 or the value previously set via EVP_CTRL_OCB_SET_TAGLEN.
-
- EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_TAG, taglen, tag);
-
-Sets the expected tag to B<taglen> bytes from B<tag>. This call is only legal
-when decrypting data. For OCB mode the taglen must either be 16 or the value
-previously set via EVP_CTRL_AEAD_SET_TAG.
-
-In OCB mode calling this with B<tag> set to NULL sets the tag length. The tag
-length can only be set before specifying an IV. If not called a default tag
-length is used. For OCB AES the default is 16 (i.e. 128 bits). This is also the
-maximum tag length for OCB.
-
-=head1 CCM Mode
-
-The behaviour of CCM mode ciphers is similar to GCM mode but with a few
-additional requirements and different ctrl values.
-
-Like GCM and OCB modes any additional authenticated data (AAD) is passed by calling
-EVP_CipherUpdate(), EVP_EncryptUpdate() or EVP_DecryptUpdate() with the output
-parameter B<out> set to B<NULL>. Additionally the total plaintext or ciphertext
-length B<MUST> be passed to EVP_CipherUpdate(), EVP_EncryptUpdate() or
-EVP_DecryptUpdate() with the output and input parameters (B<in> and B<out>)
-set to B<NULL> and the length passed in the B<inl> parameter.
-
-The following ctrls are supported in CCM mode:
+processed (e.g. after an EVP_EncryptFinal() call).
- EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_TAG, taglen, tag);
+C<taglen> specified here must be 16 (B<POLY1305_BLOCK_SIZE>, i.e. 128-bits) or
+less.
-This call is made to set the expected B<CCM> tag value when decrypting or
-the length of the tag (with the B<tag> parameter set to NULL) when encrypting.
-The tag length is often referred to as B<M>. If not set a default value is
-used (12 for AES).
+=item EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_TAG, taglen, tag)
- EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_CCM_SET_L, ivlen, NULL);
+Sets the expected tag to C<taglen> bytes from C<tag>.
+The tag length can only be set before specifying an IV.
+C<taglen> must be between 1 and 16 (B<POLY1305_BLOCK_SIZE>) inclusive.
+This call is only valid when decrypting data.
-Sets the CCM B<L> value. If not set a default is used (8 for AES).
-
- EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_IVLEN, ivlen, NULL);
-
-Sets the CCM nonce (IV) length: this call can only be made before specifying
-an nonce value. The nonce length is given by B<15 - L> so it is 7 by default
-for AES.
+=back
=head1 NOTES
=head1 BUGS
-For RC5 the number of rounds can currently only be set to 8, 12 or 16. This is
-a limitation of the current RC5 code rather than the EVP interface.
-
-EVP_MAX_KEY_LENGTH and EVP_MAX_IV_LENGTH only refer to the internal ciphers with
-default key lengths. If custom ciphers exceed these values the results are
-unpredictable. This is because it has become standard practice to define a
-generic key as a fixed unsigned char array containing EVP_MAX_KEY_LENGTH bytes.
+B<EVP_MAX_KEY_LENGTH> and B<EVP_MAX_IV_LENGTH> only refer to the internal
+ciphers with default key lengths. If custom ciphers exceed these values the
+results are unpredictable. This is because it has become standard practice to
+define a generic key as a fixed unsigned char array containing
+B<EVP_MAX_KEY_LENGTH> bytes.
The ASN1 code is incomplete (and sometimes inaccurate) it has only been tested
for certain common S/MIME ciphers (RC2, DES, triple DES) in CBC mode.
L<evp(7)>
+Supported ciphers are listed in:
+
+L<EVP_aes(3)>,
+L<EVP_aria(3)>,
+L<EVP_bf(3)>,
+L<EVP_camellia(3)>,
+L<EVP_cast5(3)>,
+L<EVP_chacha20(3)>,
+L<EVP_des(3)>,
+L<EVP_desx(3)>,
+L<EVP_idea(3)>,
+L<EVP_rc2(3)>,
+L<EVP_rc4(3)>,
+L<EVP_rc5(3)>,
+L<EVP_seed(3)>,
+L<EVP_sm4(3)>
+
=head1 HISTORY
Support for OCB mode was added in OpenSSL 1.1.0
=head1 COPYRIGHT
-Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
+Copyright 2000-2017 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the OpenSSL license (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy
--- /dev/null
+=pod
+
+=head1 NAME
+
+EVP_aes_128_cbc,
+EVP_aes_192_cbc,
+EVP_aes_256_cbc,
+EVP_aes_128_cfb,
+EVP_aes_192_cfb,
+EVP_aes_256_cfb,
+EVP_aes_128_cfb1,
+EVP_aes_192_cfb1,
+EVP_aes_256_cfb1,
+EVP_aes_128_cfb8,
+EVP_aes_192_cfb8,
+EVP_aes_256_cfb8,
+EVP_aes_128_ctr,
+EVP_aes_192_ctr,
+EVP_aes_256_ctr,
+EVP_aes_128_ecb,
+EVP_aes_192_ecb,
+EVP_aes_256_ecb,
+EVP_aes_128_ofb,
+EVP_aes_192_ofb,
+EVP_aes_256_ofb,
+EVP_aes_128_cbc_hmac_sha1,
+EVP_aes_256_cbc_hmac_sha1,
+EVP_aes_128_cbc_hmac_sha256,
+EVP_aes_256_cbc_hmac_sha256,
+EVP_aes_128_ccm,
+EVP_aes_192_ccm,
+EVP_aes_256_ccm,
+EVP_aes_128_gcm,
+EVP_aes_192_gcm,
+EVP_aes_256_gcm,
+EVP_aes_128_ocb,
+EVP_aes_192_ocb,
+EVP_aes_256_ocb,
+EVP_aes_128_wrap,
+EVP_aes_192_wrap,
+EVP_aes_256_wrap,
+EVP_aes_128_wrap_pad,
+EVP_aes_192_wrap_pad,
+EVP_aes_256_wrap_pad,
+EVP_aes_128_xts,
+EVP_aes_256_xts
+- EVP AES cipher
+
+=head1 SYNOPSIS
+
+=for comment generic
+
+ #include <openssl/evp.h>
+
+ const EVP_CIPHER *EVP_ciphername(void)
+
+I<EVP_ciphername> is used a placeholder for any of the described cipher
+functions, such as I<EVP_aes_128_cbc>.
+
+=head1 DESCRIPTION
+
+The AES encryption algorithm for EVP.
+
+=over 4
+
+=item EVP_aes_128_cbc(),
+EVP_aes_192_cbc(),
+EVP_aes_256_cbc(),
+EVP_aes_128_cfb(),
+EVP_aes_192_cfb(),
+EVP_aes_256_cfb(),
+EVP_aes_128_cfb1(),
+EVP_aes_192_cfb1(),
+EVP_aes_256_cfb1(),
+EVP_aes_128_cfb8(),
+EVP_aes_192_cfb8(),
+EVP_aes_256_cfb8(),
+EVP_aes_128_ctr(),
+EVP_aes_192_ctr(),
+EVP_aes_256_ctr(),
+EVP_aes_128_ecb(),
+EVP_aes_192_ecb(),
+EVP_aes_256_ecb(),
+EVP_aes_128_ofb(),
+EVP_aes_192_ofb(),
+EVP_aes_256_ofb()
+
+AES for 128, 192 and 256 bit keys in the following modes: CBC, CFB with 128-bit
+shift, CFB with 1-bit shift, CFB with 8-bit shift, CTR, ECB, and OFB.
+
+=item EVP_aes_128_cbc_hmac_sha1(),
+EVP_aes_256_cbc_hmac_sha1()
+
+Authenticated encryption with AES in CBC mode using SHA-1 as HMAC, with keys of
+128 and 256 bits length respectively. The authentication tag is 160 bits long.
+
+WARNING: this is not intended for usage outside of TLS and requires calling of
+some undocumented ctrl functions. These ciphers do not conform to the EVP AEAD
+interface.
+
+=item EVP_aes_128_cbc_hmac_sha256(),
+EVP_aes_256_cbc_hmac_sha256()
+
+Authenticated encryption with AES in CBC mode using SHA256 (SHA-2, 256-bits) as
+HMAC, with keys of 128 and 256 bits length respectively. The authentication tag
+is 256 bits long.
+
+WARNING: this is not intended for usage outside of TLS and requires calling of
+some undocumented ctrl functions. These ciphers do not conform to the EVP AEAD
+interface.
+
+=item EVP_aes_128_ccm(),
+EVP_aes_192_ccm(),
+EVP_aes_256_ccm(),
+EVP_aes_128_gcm(),
+EVP_aes_192_gcm(),
+EVP_aes_256_gcm(),
+EVP_aes_128_ocb(),
+EVP_aes_192_ocb(),
+EVP_aes_256_ocb()
+
+AES for 128, 192 and 256 bit keys in CBC-MAC Mode (CCM), Galois Counter Mode
+(GCM) and OCB Mode respectively. These ciphers require additional control
+operations to function correctly, see the L<EVP_EncryptInit(3)/AEAD Interface>
+section for details.
+
+=item EVP_aes_128_wrap(),
+EVP_aes_192_wrap(),
+EVP_aes_256_wrap(),
+EVP_aes_128_wrap_pad(),
+EVP_aes_128_wrap(),
+EVP_aes_192_wrap(),
+EVP_aes_256_wrap(),
+EVP_aes_192_wrap_pad(),
+EVP_aes_128_wrap(),
+EVP_aes_192_wrap(),
+EVP_aes_256_wrap(),
+EVP_aes_256_wrap_pad()
+
+AES key wrap with 128, 192 and 256 bit keys, as according to RFC 3394 section
+2.2.1 ("wrap") and RFC 5649 section 4.1 ("wrap with padding") respectively.
+
+=item EVP_aes_128_xts(),
+EVP_aes_256_xts()
+
+AES XTS mode (XTS-AES) is standardized in IEEE Std. 1619-2007 and described in NIST
+SP 800-38E. The XTS (XEX-based tweaked-codebook mode with ciphertext stealing)
+mode was designed by Prof. Phillip Rogaway of University of California, Davis,
+intended for encrypting data on a storage device.
+
+XTS-AES provides confidentiality but not authentication of data. It also
+requires a key of double-length for protection of a certain key size.
+In particular, XTS-AES-128 (B<EVP_aes_128_xts>) takes input of a 256-bit key to
+achieve AES 128-bit security, and XTS-AES-256 (B<EVP_aes_256_xts>) takes input
+of a 512-bit key to achieve AES 256-bit security.
+
+=back
+
+=head1 RETURN VALUES
+
+These functions return an B<EVP_CIPHER> structure that contains the
+implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for
+details of the B<EVP_CIPHER> structure.
+
+=head1 SEE ALSO
+
+L<evp(7)>,
+L<EVP_EncryptInit(3)>,
+L<EVP_CIPHER_meth_new(3)>
+
+=head1 COPYRIGHT
+
+Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the OpenSSL license (the "License"). You may not use
+this file except in compliance with the License. You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
+=cut
+
--- /dev/null
+=pod
+
+=head1 NAME
+
+EVP_aria_128_cbc,
+EVP_aria_192_cbc,
+EVP_aria_256_cbc,
+EVP_aria_128_cfb,
+EVP_aria_192_cfb,
+EVP_aria_256_cfb,
+EVP_aria_128_cfb1,
+EVP_aria_192_cfb1,
+EVP_aria_256_cfb1,
+EVP_aria_128_cfb8,
+EVP_aria_192_cfb8,
+EVP_aria_256_cfb8,
+EVP_aria_128_ctr,
+EVP_aria_192_ctr,
+EVP_aria_256_ctr,
+EVP_aria_128_ecb,
+EVP_aria_192_ecb,
+EVP_aria_256_ecb,
+EVP_aria_128_ofb,
+EVP_aria_192_ofb,
+EVP_aria_256_ofb,
+EVP_aria_128_ccm,
+EVP_aria_192_ccm,
+EVP_aria_256_ccm,
+EVP_aria_128_gcm,
+EVP_aria_192_gcm,
+EVP_aria_256_gcm,
+- EVP AES cipher
+
+=head1 SYNOPSIS
+
+=for comment generic
+
+ #include <openssl/evp.h>
+
+ const EVP_CIPHER *EVP_ciphername(void)
+
+I<EVP_ciphername> is used a placeholder for any of the described cipher
+functions, such as I<EVP_aria_128_cbc>.
+
+=head1 DESCRIPTION
+
+The ARIA encryption algorithm for EVP.
+
+=over 4
+
+=item EVP_aria_128_cbc(),
+EVP_aria_192_cbc(),
+EVP_aria_256_cbc(),
+EVP_aria_128_cfb(),
+EVP_aria_192_cfb(),
+EVP_aria_256_cfb(),
+EVP_aria_128_cfb1(),
+EVP_aria_192_cfb1(),
+EVP_aria_256_cfb1(),
+EVP_aria_128_cfb8(),
+EVP_aria_192_cfb8(),
+EVP_aria_256_cfb8(),
+EVP_aria_128_ctr(),
+EVP_aria_192_ctr(),
+EVP_aria_256_ctr(),
+EVP_aria_128_ecb(),
+EVP_aria_192_ecb(),
+EVP_aria_256_ecb(),
+EVP_aria_128_ofb(),
+EVP_aria_192_ofb(),
+EVP_aria_256_ofb()
+
+ARIA for 128, 192 and 256 bit keys in the following modes: CBC, CFB with
+128-bit shift, CFB with 1-bit shift, CFB with 8-bit shift, CTR, ECB and OFB.
+
+=item EVP_aria_128_ccm(),
+EVP_aria_192_ccm(),
+EVP_aria_256_ccm(),
+EVP_aria_128_gcm(),
+EVP_aria_192_gcm(),
+EVP_aria_256_gcm(),
+
+ARIA for 128, 192 and 256 bit keys in CBC-MAC Mode (CCM) and Galois Counter
+Mode (GCM). These ciphers require additional control operations to function
+correctly, see the L<EVP_EncryptInit(3)/AEAD Interface> section for details.
+
+=back
+
+=head1 RETURN VALUES
+
+These functions return an B<EVP_CIPHER> structure that contains the
+implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for
+details of the B<EVP_CIPHER> structure.
+
+=head1 SEE ALSO
+
+L<evp(7)>,
+L<EVP_EncryptInit(3)>,
+L<EVP_CIPHER_meth_new(3)>
+
+=head1 COPYRIGHT
+
+Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the OpenSSL license (the "License"). You may not use
+this file except in compliance with the License. You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
+=cut
+
--- /dev/null
+=pod
+
+=head1 NAME
+
+EVP_bf_cbc,
+EVP_bf_cfb,
+EVP_bf_ecb,
+EVP_bf_ofb
+- EVP Blowfish cipher
+
+=head1 SYNOPSIS
+
+ #include <openssl/evp.h>
+
+ const EVP_CIPHER *EVP_bf_cbc(void)
+ const EVP_CIPHER *EVP_bf_cfb(void)
+ const EVP_CIPHER *EVP_bf_ecb(void)
+ const EVP_CIPHER *EVP_bf_ofb(void)
+
+=head1 DESCRIPTION
+
+The Blowfish encryption algorithm for EVP.
+
+This is a variable key length cipher.
+
+=over 4
+
+=item EVP_bf_cbc(),
+EVP_bf_cfb(),
+EVP_bf_ecb(),
+EVP_bf_ofb()
+
+Blowfish encryption algorithm in CBC, CFB, ECB and OFB modes respectively.
+
+=back
+
+=head1 RETURN VALUES
+
+These functions return an B<EVP_CIPHER> structure that contains the
+implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for
+details of the B<EVP_CIPHER> structure.
+
+=head1 SEE ALSO
+
+L<evp(7)>,
+L<EVP_EncryptInit(3)>,
+L<EVP_CIPHER_meth_new(3)>
+
+=head1 COPYRIGHT
+
+Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the OpenSSL license (the "License"). You may not use
+this file except in compliance with the License. You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
+=cut
+
--- /dev/null
+=pod
+
+=head1 NAME
+
+EVP_camellia_128_cbc,
+EVP_camellia_192_cbc,
+EVP_camellia_256_cbc,
+EVP_camellia_128_cfb,
+EVP_camellia_192_cfb,
+EVP_camellia_256_cfb,
+EVP_camellia_128_cfb1,
+EVP_camellia_192_cfb1,
+EVP_camellia_256_cfb1,
+EVP_camellia_128_cfb8,
+EVP_camellia_192_cfb8,
+EVP_camellia_256_cfb8,
+EVP_camellia_128_ctr,
+EVP_camellia_192_ctr,
+EVP_camellia_256_ctr,
+EVP_camellia_128_ecb,
+EVP_camellia_192_ecb,
+EVP_camellia_256_ecb,
+EVP_camellia_128_ofb,
+EVP_camellia_192_ofb,
+EVP_camellia_256_ofb
+- EVP Camellia cipher
+
+=head1 SYNOPSIS
+
+=for comment generic
+
+ #include <openssl/evp.h>
+
+ const EVP_CIPHER *EVP_ciphername(void)
+
+I<EVP_ciphername> is used a placeholder for any of the described cipher
+functions, such as I<EVP_camellia_128_cbc>.
+
+=head1 DESCRIPTION
+
+The Camellia encryption algorithm for EVP.
+
+=over 4
+
+=item EVP_camellia_128_cbc(),
+EVP_camellia_192_cbc(),
+EVP_camellia_256_cbc(),
+EVP_camellia_128_cfb(),
+EVP_camellia_192_cfb(),
+EVP_camellia_256_cfb(),
+EVP_camellia_128_cfb1(),
+EVP_camellia_192_cfb1(),
+EVP_camellia_256_cfb1(),
+EVP_camellia_128_cfb8(),
+EVP_camellia_192_cfb8(),
+EVP_camellia_256_cfb8(),
+EVP_camellia_128_ctr(),
+EVP_camellia_192_ctr(),
+EVP_camellia_256_ctr(),
+EVP_camellia_128_ecb(),
+EVP_camellia_192_ecb(),
+EVP_camellia_256_ecb(),
+EVP_camellia_128_ofb(),
+EVP_camellia_192_ofb(),
+EVP_camellia_256_ofb()
+
+Camellia for 128, 192 and 256 bit keys in the following modes: CBC, CFB with
+128-bit shift, CFB with 1-bit shift, CFB with 8-bit shift, CTR, ECB and OFB.
+
+=back
+
+=head1 RETURN VALUES
+
+These functions return an B<EVP_CIPHER> structure that contains the
+implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for
+details of the B<EVP_CIPHER> structure.
+
+=head1 SEE ALSO
+
+L<evp(7)>,
+L<EVP_EncryptInit(3)>,
+L<EVP_CIPHER_meth_new(3)>
+
+=head1 COPYRIGHT
+
+Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the OpenSSL license (the "License"). You may not use
+this file except in compliance with the License. You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
+=cut
+
--- /dev/null
+=pod
+
+=head1 NAME
+
+EVP_cast5_cbc,
+EVP_cast5_cfb,
+EVP_cast5_ecb,
+EVP_cast5_ofb
+- EVP CAST cipher
+
+=head1 SYNOPSIS
+
+ #include <openssl/evp.h>
+
+ const EVP_CIPHER *EVP_cast5_cbc(void)
+ const EVP_CIPHER *EVP_cast5_cfb(void)
+ const EVP_CIPHER *EVP_cast5_ecb(void)
+ const EVP_CIPHER *EVP_cast5_ofb(void)
+
+=head1 DESCRIPTION
+
+The CAST encryption algorithm for EVP.
+
+This is a variable key length cipher.
+
+=over 4
+
+=item EVP_cast5_cbc(),
+EVP_cast5_ecb(),
+EVP_cast5_cfb(),
+EVP_cast5_ofb()
+
+CAST encryption algorithm in CBC, ECB, CFB and OFB modes respectively.
+
+=back
+
+=head1 RETURN VALUES
+
+These functions return an B<EVP_CIPHER> structure that contains the
+implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for
+details of the B<EVP_CIPHER> structure.
+
+=head1 SEE ALSO
+
+L<evp(7)>,
+L<EVP_EncryptInit(3)>,
+L<EVP_CIPHER_meth_new(3)>
+
+=head1 COPYRIGHT
+
+Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the OpenSSL license (the "License"). You may not use
+this file except in compliance with the License. You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
+=cut
+
--- /dev/null
+=pod
+
+=head1 NAME
+
+EVP_chacha20,
+EVP_chacha20_poly1305
+- EVP ChaCha20 stream cipher
+
+=head1 SYNOPSIS
+
+ #include <openssl/evp.h>
+
+ const EVP_CIPHER *EVP_chacha20(void)
+ const EVP_CIPHER *EVP_chacha20_poly1305(void)
+
+=head1 DESCRIPTION
+
+The ChaCha20 stream cipher for EVP.
+
+=over 4
+
+=item EVP_chacha20()
+
+The ChaCha20 stream cipher. The key length is 256 bits, the IV is 96 bits long.
+
+=item EVP_chacha20_poly1305()
+
+Authenticated encryption with ChaCha20-Poly1305. Like EVP_chacha20(), the key
+is 256 bits and the IV is 96 bits. This supports additional authenticated data
+(AAD) and produces a 128-bit authentication tag. See the
+L<EVP_EncryptInit(3)/AEAD Interface> section for more information.
+
+=back
+
+=head1 RETURN VALUES
+
+These functions return an B<EVP_CIPHER> structure that contains the
+implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for
+details of the B<EVP_CIPHER> structure.
+
+=head1 SEE ALSO
+
+L<evp(7)>,
+L<EVP_EncryptInit(3)>,
+L<EVP_CIPHER_meth_new(3)>
+
+=head1 COPYRIGHT
+
+Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the OpenSSL license (the "License"). You may not use
+this file except in compliance with the License. You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
+=cut
+
--- /dev/null
+=pod
+
+=head1 NAME
+
+EVP_des_cbc,
+EVP_des_cfb,
+EVP_des_cfb1,
+EVP_des_cfb8,
+EVP_des_ecb,
+EVP_des_ede,
+EVP_des_ede_cfb,
+EVP_des_ede_ofb,
+EVP_des_ofb,
+EVP_des_ede3,
+EVP_des_ede3_cbc,
+EVP_des_ede3_cfb,
+EVP_des_ede3_cfb1,
+EVP_des_ede3_cfb8,
+EVP_des_ede3_ofb,
+EVP_des_ede3_wrap,
+EVP_des_ede_cbc
+- EVP DES cipher
+
+=head1 SYNOPSIS
+
+=for comment generic
+
+ #include <openssl/evp.h>
+
+ const EVP_CIPHER *EVP_ciphername(void)
+
+I<EVP_ciphername> is used a placeholder for any of the described cipher
+functions, such as I<EVP_des_cbc>.
+
+=head1 DESCRIPTION
+
+The DES encryption algorithm for EVP.
+
+=over 4
+
+=item EVP_des_cbc(),
+EVP_des_ecb(),
+EVP_des_cfb(),
+EVP_des_cfb1(),
+EVP_des_cfb8(),
+EVP_des_ofb()
+
+DES in CBC, ECB, CFB with 128-bit shift, CFB with 1-bit shift, CFB with 8-bit
+shift and OFB modes respectively.
+
+=item EVP_des_ede(),
+EVP_des_ede_cbc(),
+EVP_des_ede_ofb(),
+EVP_des_ede_cfb()
+
+Two key triple DES in ECB, CBC, CFB and OFB modes respectively.
+
+=item EVP_des_ede3(),
+EVP_des_ede3_cbc(),
+EVP_des_ede3_cfb(),
+EVP_des_ede3_cfb1(),
+EVP_des_ede3_cfb8(),
+EVP_des_ede3_ofb()
+
+Three-key triple DES in ECB, CBC, CFB with 128-bit shift, CFB with 1-bit shift,
+CFB with 8-bit shift and OFB modes respectively.
+
+=item EVP_des_ede3_wrap()
+
+Triple-DES key wrap according to RFC 3217 Section 3.
+
+=back
+
+=head1 RETURN VALUES
+
+These functions return an B<EVP_CIPHER> structure that contains the
+implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for
+details of the B<EVP_CIPHER> structure.
+
+=head1 SEE ALSO
+
+L<evp(7)>,
+L<EVP_EncryptInit(3)>,
+L<EVP_CIPHER_meth_new(3)>
+
+=head1 COPYRIGHT
+
+Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the OpenSSL license (the "License"). You may not use
+this file except in compliance with the License. You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
+=cut
+
--- /dev/null
+=pod
+
+=head1 NAME
+
+EVP_desx_cbc
+- EVP DES-X cipher
+
+=head1 SYNOPSIS
+
+ #include <openssl/evp.h>
+
+ const EVP_CIPHER *EVP_desx_cbc(void)
+
+=head1 DESCRIPTION
+
+The DES-X encryption algorithm for EVP.
+
+All modes below use a key length of 128 bits and acts on blocks of 128-bits.
+
+=over 4
+
+=item EVP_desx_cbc()
+
+The DES-X algorithm in CBC mode.
+
+=back
+
+=head1 RETURN VALUES
+
+These functions return an B<EVP_CIPHER> structure that contains the
+implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for
+details of the B<EVP_CIPHER> structure.
+
+=head1 SEE ALSO
+
+L<evp(7)>,
+L<EVP_EncryptInit(3)>,
+L<EVP_CIPHER_meth_new(3)>
+
+=head1 COPYRIGHT
+
+Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the OpenSSL license (the "License"). You may not use
+this file except in compliance with the License. You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
+=cut
+
--- /dev/null
+=pod
+
+=head1 NAME
+
+EVP_idea_cbc,
+EVP_idea_cfb,
+EVP_idea_ecb,
+EVP_idea_ofb
+- EVP IDEA cipher
+
+=head1 SYNOPSIS
+
+ #include <openssl/evp.h>
+
+ const EVP_CIPHER *EVP_idea_cbc(void)
+ const EVP_CIPHER *EVP_idea_cfb(void)
+ const EVP_CIPHER *EVP_idea_ecb(void)
+ const EVP_CIPHER *EVP_idea_ofb(void)
+
+=head1 DESCRIPTION
+
+The IDEA encryption algorithm for EVP.
+
+=over 4
+
+=item EVP_idea_cbc(),
+EVP_idea_cfb(),
+EVP_idea_ecb(),
+EVP_idea_ofb()
+
+The IDEA encryption algorithm in CBC, CFB, ECB and OFB modes respectively.
+
+=back
+
+=head1 RETURN VALUES
+
+These functions return an B<EVP_CIPHER> structure that contains the
+implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for
+details of the B<EVP_CIPHER> structure.
+
+=head1 SEE ALSO
+
+L<evp(7)>,
+L<EVP_EncryptInit(3)>,
+L<EVP_CIPHER_meth_new(3)>
+
+=head1 COPYRIGHT
+
+Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the OpenSSL license (the "License"). You may not use
+this file except in compliance with the License. You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
+=cut
+
--- /dev/null
+=pod
+
+=head1 NAME
+
+EVP_rc2_cbc,
+EVP_rc2_cfb,
+EVP_rc2_ecb,
+EVP_rc2_ofb,
+EVP_rc2_40_cbc,
+EVP_rc2_64_cbc
+- EVP RC2 cipher
+
+=head1 SYNOPSIS
+
+ #include <openssl/evp.h>
+
+ const EVP_CIPHER *EVP_rc2_cbc(void)
+ const EVP_CIPHER *EVP_rc2_cfb(void)
+ const EVP_CIPHER *EVP_rc2_ecb(void)
+ const EVP_CIPHER *EVP_rc2_ofb(void)
+ const EVP_CIPHER *EVP_rc2_40_cbc(void)
+ const EVP_CIPHER *EVP_rc2_64_cbc(void)
+
+=head1 DESCRIPTION
+
+The RC2 encryption algorithm for EVP.
+
+=over 4
+
+=item EVP_rc2_cbc(),
+EVP_rc2_cfb(),
+EVP_rc2_ecb(),
+EVP_rc2_ofb()
+
+RC2 encryption algorithm in CBC, CFB, ECB and OFB modes respectively. This is a
+variable key length cipher with an additional parameter called "effective key
+bits" or "effective key length". By default both are set to 128 bits.
+
+=item EVP_rc2_40_cbc(),
+EVP_rc2_64_cbc()
+
+RC2 algorithm in CBC mode with a default key length and effective key length of
+40 and 64 bits.
+
+WARNING: these functions are obsolete. Their usage should be replaced with the
+EVP_rc2_cbc(), EVP_CIPHER_CTX_set_key_length() and EVP_CIPHER_CTX_ctrl()
+functions to set the key length and effective key length.
+
+=back
+
+=head1 RETURN VALUES
+
+These functions return an B<EVP_CIPHER> structure that contains the
+implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for
+details of the B<EVP_CIPHER> structure.
+
+=head1 SEE ALSO
+
+L<evp(7)>,
+L<EVP_EncryptInit(3)>,
+L<EVP_CIPHER_meth_new(3)>
+
+=head1 COPYRIGHT
+
+Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the OpenSSL license (the "License"). You may not use
+this file except in compliance with the License. You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
+=cut
+
--- /dev/null
+=pod
+
+=head1 NAME
+
+EVP_rc4,
+EVP_rc4_40,
+EVP_rc4_hmac_md5
+- EVP RC4 stream cipher
+
+=head1 SYNOPSIS
+
+ #include <openssl/evp.h>
+
+ const EVP_CIPHER *EVP_rc4(void)
+ const EVP_CIPHER *EVP_rc4_40(void)
+ const EVP_CIPHER *EVP_rc4_hmac_md5(void)
+
+=head1 DESCRIPTION
+
+The RC4 stream cipher for EVP.
+
+=over 4
+
+=item EVP_rc4()
+
+RC4 stream cipher. This is a variable key length cipher with a default key
+length of 128 bits.
+
+=item EVP_rc4_40()
+
+RC4 stream cipher with 40 bit key length.
+
+WARNING: this function is obsolete. Its usage should be replaced with the
+EVP_rc4() and the EVP_CIPHER_CTX_set_key_length() functions.
+
+=item EVP_rc4_hmac_md5()
+
+Authenticated encryption with the RC4 stream cipher with MD5 as HMAC.
+
+WARNING: this is not intended for usage outside of TLS and requires calling of
+some undocumented ctrl functions. These ciphers do not conform to the EVP AEAD
+interface.
+
+=back
+
+=head1 RETURN VALUES
+
+These functions return an B<EVP_CIPHER> structure that contains the
+implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for
+details of the B<EVP_CIPHER> structure.
+
+=head1 SEE ALSO
+
+L<evp(7)>,
+L<EVP_EncryptInit(3)>,
+L<EVP_CIPHER_meth_new(3)>
+
+=head1 COPYRIGHT
+
+Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the OpenSSL license (the "License"). You may not use
+this file except in compliance with the License. You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
+=cut
+
--- /dev/null
+=pod
+
+=head1 NAME
+
+EVP_rc5_32_12_16_cbc,
+EVP_rc5_32_12_16_cfb,
+EVP_rc5_32_12_16_ecb,
+EVP_rc5_32_12_16_ofb
+- EVP RC5 cipher
+
+=head1 SYNOPSIS
+
+ #include <openssl/evp.h>
+
+ const EVP_CIPHER *EVP_rc5_32_12_16_cbc(void)
+ const EVP_CIPHER *EVP_rc5_32_12_16_cfb(void)
+ const EVP_CIPHER *EVP_rc5_32_12_16_ecb(void)
+ const EVP_CIPHER *EVP_rc5_32_12_16_ofb(void)
+
+=head1 DESCRIPTION
+
+The RC5 encryption algorithm for EVP.
+
+=over 4
+
+=item EVP_rc5_32_12_16_cbc(),
+EVP_rc5_32_12_16_cfb(),
+EVP_rc5_32_12_16_ecb(),
+EVP_rc5_32_12_16_ofb()
+
+RC5 encryption algorithm in CBC, CFB, ECB and OFB modes respectively. This is a
+variable key length cipher with an additional "number of rounds" parameter. By
+default the key length is set to 128 bits and 12 rounds.
+
+=back
+
+=head1 RETURN VALUES
+
+These functions return an B<EVP_CIPHER> structure that contains the
+implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for
+details of the B<EVP_CIPHER> structure.
+
+=head1 BUGS
+
+Currently the number of rounds in RC5 can only be set to 8, 12 or 16.
+This is a limitation of the current RC5 code rather than the EVP interface.
+
+=head1 SEE ALSO
+
+L<evp(7)>,
+L<EVP_EncryptInit(3)>,
+L<EVP_CIPHER_meth_new(3)>
+
+=head1 COPYRIGHT
+
+Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the OpenSSL license (the "License"). You may not use
+this file except in compliance with the License. You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
+=cut
+
--- /dev/null
+=pod
+
+=head1 NAME
+
+EVP_seed_cbc,
+EVP_seed_cfb,
+EVP_seed_ecb,
+EVP_seed_ofb
+- EVP SEED cipher
+
+=head1 SYNOPSIS
+
+ #include <openssl/evp.h>
+
+ const EVP_CIPHER *EVP_seed_cbc(void)
+ const EVP_CIPHER *EVP_seed_cfb(void)
+ const EVP_CIPHER *EVP_seed_ecb(void)
+ const EVP_CIPHER *EVP_seed_ofb(void)
+
+=head1 DESCRIPTION
+
+The SEED encryption algorithm for EVP.
+
+All modes below use a key length of 128 bits and acts on blocks of 128-bits.
+
+=over 4
+
+=item EVP_seed_cbc(),
+EVP_seed_cfb(),
+EVP_seed_ecb(),
+EVP_seed_ofb()
+
+The SEED encryption algorithm in CBC, CFB, ECB and OFB modes respectively.
+
+=back
+
+=head1 RETURN VALUES
+
+These functions return an B<EVP_CIPHER> structure that contains the
+implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for
+details of the B<EVP_CIPHER> structure.
+
+=head1 SEE ALSO
+
+L<evp(7)>,
+L<EVP_EncryptInit(3)>,
+L<EVP_CIPHER_meth_new(3)>
+
+=head1 COPYRIGHT
+
+Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
+
+Licensed under the OpenSSL license (the "License"). You may not use
+this file except in compliance with the License. You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
+=cut
+
+++ /dev/null
-=pod
-
-=head1 NAME
-
-EVP_sm4_cbc,
-EVP_sm4_ecb,
-EVP_sm4_cfb,
-EVP_sm4_ofb,
-EVP_sm4_ctr
-- EVP SM4 cipher
-
-=head1 SYNOPSIS
-
-=for comment generic
-
- #include <openssl/evp.h>
-
- const EVP_CIPHER *EVP_ciphername(void)
-
-I<EVP_ciphername> is used a placeholder for any of the described cipher
-functions, such as I<EVP_sm4_cbc>.
-
-=head1 DESCRIPTION
-
-The SM4 blockcipher (GB/T 32907-2016) for EVP.
-
-All modes below use a key length of 128 bits and acts on blocks of 128 bits.
-
-=over 4
-
-=item EVP_sm4_cbc(),
-EVP_sm4_ecb(),
-EVP_sm4_cfb(),
-EVP_sm4_ofb(),
-EVP_sm4_ctr()
-
-The SM4 blockcipher with a 128-bit key in CBC, ECB, CFB, OFB and CTR modes
-respectively.
-
-=back
-
-=head1 RETURN VALUES
-
-These functions return a B<EVP_CIPHER> structure that contains the
-implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for
-details of the B<EVP_CIPHER> structure.
-
-=head1 SEE ALSO
-
-L<evp(7)>,
-L<EVP_EncryptInit(3)>,
-L<EVP_CIPHER_meth_new(3)>
-
-=head1 COPYRIGHT
-
-Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
-Copyright 2017 Ribose Inc. All Rights Reserved.
-
-Licensed under the OpenSSL license (the "License"). You may not use
-this file except in compliance with the License. You can obtain a copy
-in the file LICENSE in the source distribution or at
-L<https://www.openssl.org/source/license.html>.
-
-=cut
-
--- /dev/null
+=pod
+
+=head1 NAME
+
+EVP_sm4_cbc,
+EVP_sm4_ecb,
+EVP_sm4_cfb,
+EVP_sm4_ofb,
+EVP_sm4_ctr
+- EVP SM4 cipher
+
+=head1 SYNOPSIS
+
+ #include <openssl/evp.h>
+
+ const EVP_CIPHER *EVP_sm4_cbc(void)
+ const EVP_CIPHER *EVP_sm4_ecb(void)
+ const EVP_CIPHER *EVP_sm4_cfb(void)
+ const EVP_CIPHER *EVP_sm4_ofb(void)
+ const EVP_CIPHER *EVP_sm4_ctr(void)
+
+=head1 DESCRIPTION
+
+The SM4 blockcipher (GB/T 32907-2016) for EVP.
+
+All modes below use a key length of 128 bits and acts on blocks of 128 bits.
+
+=over 4
+
+=item EVP_sm4_cbc(),
+EVP_sm4_ecb(),
+EVP_sm4_cfb(),
+EVP_sm4_ofb(),
+EVP_sm4_ctr()
+
+The SM4 blockcipher with a 128-bit key in CBC, ECB, CFB, OFB and CTR modes
+respectively.
+
+=back
+
+=head1 RETURN VALUES
+
+These functions return a B<EVP_CIPHER> structure that contains the
+implementation of the symmetric cipher. See L<EVP_CIPHER_meth_new(3)> for
+details of the B<EVP_CIPHER> structure.
+
+=head1 SEE ALSO
+
+L<evp(7)>,
+L<EVP_EncryptInit(3)>,
+L<EVP_CIPHER_meth_new(3)>
+
+=head1 COPYRIGHT
+
+Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
+Copyright 2017 Ribose Inc. All Rights Reserved.
+
+Licensed under the OpenSSL license (the "License"). You may not use
+this file except in compliance with the License. You can obtain a copy
+in the file LICENSE in the source distribution or at
+L<https://www.openssl.org/source/license.html>.
+
+=cut
+
EVP_VerifyInit define
EVP_VerifyInit_ex define
EVP_VerifyUpdate define
+EVP_bf_cfb define
+EVP_cast5_cfb define
EVP_cleanup define deprecated 1.1.0
EVP_get_digestbynid define
EVP_get_digestbyobj define
+EVP_idea_cfb define
+EVP_rc2_cfb define
+EVP_rc5_32_12_16_cfb define
+EVP_seed_cfb define
+EVP_sm4_cfb define
OBJ_cleanup define deprecated 1.1.0
OPENSSL_VERSION_NUMBER define
OPENSSL_clear_free define
projects / oweals / openssl.git / commitdiff