LIB=$(TOP)/libcrypto.a
LIBSRC= rsa_eay.c rsa_gen.c rsa_lib.c rsa_sign.c rsa_saos.c rsa_err.c \
rsa_pk1.c rsa_ssl.c rsa_none.c rsa_oaep.c rsa_chk.c rsa_null.c \
- rsa_asn1.c
+ rsa_pss.c rsa_asn1.c
LIBOBJ= rsa_eay.o rsa_gen.o rsa_lib.o rsa_sign.o rsa_saos.o rsa_err.o \
rsa_pk1.o rsa_ssl.o rsa_none.o rsa_oaep.o rsa_chk.o rsa_null.o \
- rsa_asn1.o
+ rsa_pss.o rsa_asn1.o
SRC= $(LIBSRC)
const unsigned char *f,int fl);
int RSA_padding_check_PKCS1_type_2(unsigned char *to,int tlen,
const unsigned char *f,int fl,int rsa_len);
+int PKCS1_MGF1(unsigned char *mask, long len,
+ const unsigned char *seed, long seedlen, const EVP_MD *dgst);
int RSA_padding_add_PKCS1_OAEP(unsigned char *to,int tlen,
const unsigned char *f,int fl,
const unsigned char *p,int pl);
int RSA_padding_check_none(unsigned char *to,int tlen,
const unsigned char *f,int fl,int rsa_len);
+int RSA_verify_PKCS1_PSS(RSA *rsa, const unsigned char *mHash,
+ const EVP_MD *Hash, const unsigned char *EM, int sLen);
+int RSA_padding_add_PKCS1_PSS(RSA *rsa, unsigned char *EM,
+ const unsigned char *mHash,
+ const EVP_MD *Hash, int sLen);
+
int RSA_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
int RSA_set_ex_data(RSA *r,int idx,void *arg);
#define RSA_F_RSA_NULL 124
#define RSA_F_RSA_PADDING_ADD_NONE 107
#define RSA_F_RSA_PADDING_ADD_PKCS1_OAEP 121
+#define RSA_F_RSA_PADDING_ADD_PKCS1_PSS 125
#define RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_1 108
#define RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_2 109
#define RSA_F_RSA_PADDING_ADD_SSLV23 110
#define RSA_F_RSA_SIGN_ASN1_OCTET_STRING 118
#define RSA_F_RSA_VERIFY 119
#define RSA_F_RSA_VERIFY_ASN1_OCTET_STRING 120
+#define RSA_F_RSA_VERIFY_PKCS1_PSS 126
/* Reason codes. */
#define RSA_R_ALGORITHM_MISMATCH 100
#define RSA_R_DMP1_NOT_CONGRUENT_TO_D 124
#define RSA_R_DMQ1_NOT_CONGRUENT_TO_D 125
#define RSA_R_D_E_NOT_CONGRUENT_TO_1 123
+#define RSA_R_FIRST_OCTET_INVALID 133
#define RSA_R_INVALID_MESSAGE_LENGTH 131
#define RSA_R_IQMP_NOT_INVERSE_OF_Q 126
#define RSA_R_KEY_SIZE_TOO_SMALL 120
+#define RSA_R_LAST_OCTET_INVALID 134
#define RSA_R_NULL_BEFORE_BLOCK_MISSING 113
#define RSA_R_N_DOES_NOT_EQUAL_P_Q 127
#define RSA_R_OAEP_DECODING_ERROR 121
+#define RSA_R_ONE_CHECK_FAILED 135
#define RSA_R_PADDING_CHECK_FAILED 114
#define RSA_R_P_NOT_PRIME 128
#define RSA_R_Q_NOT_PRIME 129
#define RSA_R_UNKNOWN_ALGORITHM_TYPE 117
#define RSA_R_UNKNOWN_PADDING_TYPE 118
#define RSA_R_WRONG_SIGNATURE_LENGTH 119
+#define RSA_R_ZERO_CHECK_FAILED 136
#ifdef __cplusplus
}
{ERR_FUNC(RSA_F_RSA_NULL), "RSA_NULL"},
{ERR_FUNC(RSA_F_RSA_PADDING_ADD_NONE), "RSA_padding_add_none"},
{ERR_FUNC(RSA_F_RSA_PADDING_ADD_PKCS1_OAEP), "RSA_padding_add_PKCS1_OAEP"},
+{ERR_FUNC(RSA_F_RSA_PADDING_ADD_PKCS1_PSS), "RSA_padding_add_PKCS1_PSS"},
{ERR_FUNC(RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_1), "RSA_padding_add_PKCS1_type_1"},
{ERR_FUNC(RSA_F_RSA_PADDING_ADD_PKCS1_TYPE_2), "RSA_padding_add_PKCS1_type_2"},
{ERR_FUNC(RSA_F_RSA_PADDING_ADD_SSLV23), "RSA_padding_add_SSLv23"},
{ERR_FUNC(RSA_F_RSA_SIGN_ASN1_OCTET_STRING), "RSA_sign_ASN1_OCTET_STRING"},
{ERR_FUNC(RSA_F_RSA_VERIFY), "RSA_verify"},
{ERR_FUNC(RSA_F_RSA_VERIFY_ASN1_OCTET_STRING), "RSA_verify_ASN1_OCTET_STRING"},
+{ERR_FUNC(RSA_F_RSA_VERIFY_PKCS1_PSS), "RSA_verify_PKCS1_PSS"},
{0,NULL}
};
{ERR_REASON(RSA_R_DMP1_NOT_CONGRUENT_TO_D),"dmp1 not congruent to d"},
{ERR_REASON(RSA_R_DMQ1_NOT_CONGRUENT_TO_D),"dmq1 not congruent to d"},
{ERR_REASON(RSA_R_D_E_NOT_CONGRUENT_TO_1),"d e not congruent to 1"},
+{ERR_REASON(RSA_R_FIRST_OCTET_INVALID) ,"first octet invalid"},
{ERR_REASON(RSA_R_INVALID_MESSAGE_LENGTH),"invalid message length"},
{ERR_REASON(RSA_R_IQMP_NOT_INVERSE_OF_Q) ,"iqmp not inverse of q"},
{ERR_REASON(RSA_R_KEY_SIZE_TOO_SMALL) ,"key size too small"},
+{ERR_REASON(RSA_R_LAST_OCTET_INVALID) ,"last octet invalid"},
{ERR_REASON(RSA_R_NULL_BEFORE_BLOCK_MISSING),"null before block missing"},
{ERR_REASON(RSA_R_N_DOES_NOT_EQUAL_P_Q) ,"n does not equal p q"},
{ERR_REASON(RSA_R_OAEP_DECODING_ERROR) ,"oaep decoding error"},
+{ERR_REASON(RSA_R_ONE_CHECK_FAILED) ,"one check failed"},
{ERR_REASON(RSA_R_PADDING_CHECK_FAILED) ,"padding check failed"},
{ERR_REASON(RSA_R_P_NOT_PRIME) ,"p not prime"},
{ERR_REASON(RSA_R_Q_NOT_PRIME) ,"q not prime"},
{ERR_REASON(RSA_R_UNKNOWN_ALGORITHM_TYPE),"unknown algorithm type"},
{ERR_REASON(RSA_R_UNKNOWN_PADDING_TYPE) ,"unknown padding type"},
{ERR_REASON(RSA_R_WRONG_SIGNATURE_LENGTH),"wrong signature length"},
+{ERR_REASON(RSA_R_ZERO_CHECK_FAILED) ,"zero check failed"},
{0,NULL}
};
#include <openssl/rand.h>
#include <openssl/sha.h>
-int MGF1(unsigned char *mask, long len,
- const unsigned char *seed, long seedlen);
-
int RSA_padding_add_PKCS1_OAEP(unsigned char *to, int tlen,
const unsigned char *from, int flen,
const unsigned char *param, int plen)
20);
#endif
- MGF1(dbmask, emlen - SHA_DIGEST_LENGTH, seed, SHA_DIGEST_LENGTH);
+ PKCS1_MGF1(dbmask, emlen - SHA_DIGEST_LENGTH, seed, SHA_DIGEST_LENGTH,
+ EVP_sha1());
for (i = 0; i < emlen - SHA_DIGEST_LENGTH; i++)
db[i] ^= dbmask[i];
- MGF1(seedmask, SHA_DIGEST_LENGTH, db, emlen - SHA_DIGEST_LENGTH);
+ PKCS1_MGF1(seedmask, SHA_DIGEST_LENGTH, db, emlen - SHA_DIGEST_LENGTH,
+ EVP_sha1());
for (i = 0; i < SHA_DIGEST_LENGTH; i++)
seed[i] ^= seedmask[i];
return -1;
}
- MGF1(seed, SHA_DIGEST_LENGTH, maskeddb, dblen);
+ PKCS1_MGF1(seed, SHA_DIGEST_LENGTH, maskeddb, dblen, EVP_sha1());
for (i = lzero; i < SHA_DIGEST_LENGTH; i++)
seed[i] ^= from[i - lzero];
- MGF1(db, dblen, seed, SHA_DIGEST_LENGTH);
+ PKCS1_MGF1(db, dblen, seed, SHA_DIGEST_LENGTH, EVP_sha1());
for (i = 0; i < dblen; i++)
db[i] ^= maskeddb[i];
return -1;
}
-int MGF1(unsigned char *mask, long len,
- const unsigned char *seed, long seedlen)
+int PKCS1_MGF1(unsigned char *mask, long len,
+ const unsigned char *seed, long seedlen, const EVP_MD *dgst)
{
long i, outlen = 0;
unsigned char cnt[4];
EVP_MD_CTX c;
- unsigned char md[SHA_DIGEST_LENGTH];
+ unsigned char md[EVP_MAX_MD_SIZE];
+ int mdlen;
EVP_MD_CTX_init(&c);
+ mdlen = EVP_MD_size(dgst);
for (i = 0; outlen < len; i++)
{
cnt[0] = (unsigned char)((i >> 24) & 255);
cnt[1] = (unsigned char)((i >> 16) & 255);
cnt[2] = (unsigned char)((i >> 8)) & 255;
cnt[3] = (unsigned char)(i & 255);
- EVP_DigestInit_ex(&c,EVP_sha1(), NULL);
+ EVP_DigestInit_ex(&c,dgst, NULL);
EVP_DigestUpdate(&c, seed, seedlen);
EVP_DigestUpdate(&c, cnt, 4);
- if (outlen + SHA_DIGEST_LENGTH <= len)
+ if (outlen + mdlen <= len)
{
EVP_DigestFinal_ex(&c, mask + outlen, NULL);
- outlen += SHA_DIGEST_LENGTH;
+ outlen += mdlen;
}
else
{
EVP_MD_CTX_cleanup(&c);
return 0;
}
+
+int MGF1(unsigned char *mask, long len, const unsigned char *seed, long seedlen)
+ {
+ return PKCS1_MGF1(mask, len, seed, seedlen, EVP_sha1());
+ }
#endif
--- /dev/null
+/* rsa_pss.c */
+/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
+ * project 2005.
+ */
+/* ====================================================================
+ * Copyright (c) 2005 The OpenSSL Project. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+#include <stdio.h>
+#include "cryptlib.h"
+#include <openssl/bn.h>
+#include <openssl/rsa.h>
+#include <openssl/evp.h>
+#include <openssl/rand.h>
+#include <openssl/sha.h>
+
+const static unsigned char zeroes[] = {0,0,0,0,0,0,0,0};
+
+int RSA_verify_PKCS1_PSS(RSA *rsa, const unsigned char *mHash,
+ const EVP_MD *Hash, const unsigned char *EM, int sLen)
+ {
+ int i;
+ int ret = 0;
+ int hLen, maskedDBLen, emBits, emLen;
+ const unsigned char *H;
+ unsigned char *DB = NULL;
+ EVP_MD_CTX ctx;
+ unsigned char H_[EVP_MAX_MD_SIZE];
+ emBits = BN_num_bits(rsa->n) - 1;
+ emLen = (emBits + 7) >> 3;
+ hLen = EVP_MD_size(Hash);
+ if (emLen < (hLen + sLen + 2))
+ {
+ RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS, RSA_R_DATA_TOO_LARGE);
+ goto err;
+ }
+ if (EM[emLen - 1] != 0xbc)
+ {
+ RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS, RSA_R_LAST_OCTET_INVALID);
+ goto err;
+ }
+ if (EM[0] & (0xFF << (emBits & 0x7)))
+ {
+ RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS, RSA_R_FIRST_OCTET_INVALID);
+ goto err;
+ }
+ maskedDBLen = emLen - hLen - 1;
+ H = EM + maskedDBLen;
+ DB = OPENSSL_malloc(maskedDBLen);
+ if (!DB)
+ {
+ RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ PKCS1_MGF1(DB, maskedDBLen, H, hLen, Hash);
+ for (i = 0; i < maskedDBLen; i++)
+ DB[i] ^= EM[i];
+ DB[0] &= 0xFF >> (8 - (emBits & 0x7));
+ for (i = 0; i < (emLen - hLen - sLen - 2); i++)
+ {
+ if (DB[i] != 0)
+ {
+ RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS,
+ RSA_R_ZERO_CHECK_FAILED);
+ goto err;
+ }
+ }
+ if (DB[i] != 0x1)
+ {
+ RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS, RSA_R_ONE_CHECK_FAILED);
+ goto err;
+ }
+ EVP_MD_CTX_init(&ctx);
+ EVP_DigestInit_ex(&ctx, Hash, NULL);
+ EVP_DigestUpdate(&ctx, zeroes, sizeof zeroes);
+ EVP_DigestUpdate(&ctx, mHash, hLen);
+ if (sLen)
+ EVP_DigestUpdate(&ctx, DB + maskedDBLen - sLen, sLen);
+ EVP_DigestFinal(&ctx, H_, NULL);
+ EVP_MD_CTX_cleanup(&ctx);
+ if (memcmp(H_, H, hLen))
+ {
+ RSAerr(RSA_F_RSA_VERIFY_PKCS1_PSS, RSA_R_BAD_SIGNATURE);
+ ret = 0;
+ }
+ else
+ ret = 1;
+
+ err:
+ if (DB)
+ OPENSSL_free(DB);
+
+ return ret;
+
+ }
+
+int RSA_padding_add_PKCS1_PSS(RSA *rsa, unsigned char *EM,
+ const unsigned char *mHash,
+ const EVP_MD *Hash, int sLen)
+ {
+ int i;
+ int ret = 0;
+ int hLen, maskedDBLen, emBits, emLen;
+ unsigned char *H, *salt = NULL, *p;
+ EVP_MD_CTX ctx;
+ emBits = BN_num_bits(rsa->n) - 1;
+ emLen = (emBits + 7) >> 3;
+ hLen = EVP_MD_size(Hash);
+ if (sLen < 0)
+ sLen = 0;
+ if (emLen < (hLen + sLen + 2))
+ {
+ RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_PSS,
+ RSA_R_DATA_TOO_LARGE_FOR_KEY_SIZE);
+ goto err;
+ }
+ if (sLen > 0)
+ {
+ salt = OPENSSL_malloc(sLen);
+ if (!salt)
+ {
+ RSAerr(RSA_F_RSA_PADDING_ADD_PKCS1_PSS,
+ ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ if (!RAND_bytes(salt, sLen))
+ goto err;
+ }
+ maskedDBLen = emLen - hLen - 1;
+ H = EM + maskedDBLen;
+ EVP_MD_CTX_init(&ctx);
+ EVP_DigestInit_ex(&ctx, Hash, NULL);
+ EVP_DigestUpdate(&ctx, zeroes, sizeof zeroes);
+ EVP_DigestUpdate(&ctx, mHash, hLen);
+ if (sLen)
+ EVP_DigestUpdate(&ctx, salt, sLen);
+ EVP_DigestFinal(&ctx, H, NULL);
+ EVP_MD_CTX_cleanup(&ctx);
+
+ /* Generate dbMask in place then perform XOR on it */
+ PKCS1_MGF1(EM, maskedDBLen, H, hLen, Hash);
+
+ p = EM;
+
+ /* Initial PS XORs with all zeroes which is a NOP so just update
+ * pointer. Note from a test above this value is guaranteed to
+ * be non-negative.
+ */
+ p += emLen - sLen - hLen - 2;
+ *p++ ^= 0x1;
+ if (sLen > 0)
+ {
+ for (i = 0; i < sLen; i++)
+ *p++ ^= salt[i];
+ }
+ EM[0] &= 0xFF >> (8 - (emBits & 0x7));
+
+ /* H is already in place so just set final 0xbc */
+
+ EM[emLen - 1] = 0xbc;
+
+ ret = 1;
+
+ err:
+ if (salt)
+ OPENSSL_free(salt);
+
+ return ret;
+
+ }
projects / oweals / openssl.git / commitdiff