int EVP_OpenInit(EVP_CIPHER_CTX *ctx,EVP_CIPHER *type,unsigned char *ek,
int ekl,unsigned char *iv,EVP_PKEY *priv);
- void EVP_OpenUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ int EVP_OpenUpdate(EVP_CIPHER_CTX *ctx, unsigned char *out,
int *outl, unsigned char *in, int inl);
- void EVP_OpenFinal(EVP_CIPHER_CTX *ctx, unsigned char *out,
+ int EVP_OpenFinal(EVP_CIPHER_CTX *ctx, unsigned char *out,
int *outl);
=head1 DESCRIPTION
decryption. They decrypt a public key encrypted symmetric key and
then decrypt data using it.
-EVP_OpenInit() initialises a cipher context B<ctx> for decryption
+EVP_OpenInit() initializes a cipher context B<ctx> for decryption
with cipher B<type>. It decrypts the encrypted symmetric key of length
B<ekl> bytes passed in the B<ek> parameter using the private key B<priv>.
The IV is supplied in the B<iv> parameter.
It is possible to call EVP_OpenInit() twice in the same way as
EVP_DecryptInit(). The first call should have B<priv> set to NULL
-and (after setting any cipher paramaters) it should be called again
+and (after setting any cipher parameters) it should be called again
with B<type> set to NULL.
If the cipher passed in the B<type> parameter is a variable length
=head1 RETURN VALUES
-EVP_OpenInit() returns -1 on error or a non zero integer (actually the
+EVP_OpenInit() returns 0 on error or a non zero integer (actually the
recovered secret key size) if successful.
-EVP_OpenUpdate() returns 1 for success of 0 for failure.
+EVP_OpenUpdate() returns 1 for success or 0 for failure.
EVP_OpenFinal() returns 0 if the decrypt failed or 1 for success.
=head1 SEE ALSO
-L<evp(3)|evp(3)>,L<rand(3)|rand(3)>
+L<evp(3)|evp(3)>, L<rand(3)|rand(3)>,
L<EVP_EncryptInit(3)|EVP_EncryptInit(3)>,
L<EVP_SealInit(3)|EVP_SealInit(3)>