| EVP_EncryptInit.pod (1.1.1.9) | EVP_EncryptInit.pod (1.1.1.10) |
|---|---|
| 1=pod 2 3=head1 NAME 4 5EVP_CIPHER_fetch, 6EVP_CIPHER_up_ref, 7EVP_CIPHER_free, 8EVP_CIPHER_CTX_new, --- 651 unchanged lines hidden (view full) --- 660=item "blocksize" (B<OSSL_CIPHER_PARAM_BLOCK_SIZE>) <unsigned integer> 661 662Gets the block size for the associated cipher algorithm I<cipher>. 663The block size should be 1 for stream ciphers. 664Note that the block size for a cipher may be different to the block size for 665the underlying encryption/decryption primitive. 666For example AES in CTR mode has a block size of 1 (because it operates like a 667stream cipher), even though AES has a block size of 16. | 1=pod 2 3=head1 NAME 4 5EVP_CIPHER_fetch, 6EVP_CIPHER_up_ref, 7EVP_CIPHER_free, 8EVP_CIPHER_CTX_new, --- 651 unchanged lines hidden (view full) --- 660=item "blocksize" (B<OSSL_CIPHER_PARAM_BLOCK_SIZE>) <unsigned integer> 661 662Gets the block size for the associated cipher algorithm I<cipher>. 663The block size should be 1 for stream ciphers. 664Note that the block size for a cipher may be different to the block size for 665the underlying encryption/decryption primitive. 666For example AES in CTR mode has a block size of 1 (because it operates like a 667stream cipher), even though AES has a block size of 16. |
| 668Use EVP_CIPHER_get_block_size() to retreive the cached value. | 668Use EVP_CIPHER_get_block_size() to retrieve the cached value. |
| 669 670=item "aead" (B<OSSL_CIPHER_PARAM_AEAD>) <integer> 671 672Gets 1 if this is an AEAD cipher algorithm, otherwise it gets 0. 673Use (EVP_CIPHER_get_flags(cipher) & EVP_CIPH_FLAG_AEAD_CIPHER) to retrieve the 674cached value. 675 676=item "custom-iv" (B<OSSL_CIPHER_PARAM_CUSTOM_IV>) <integer> --- 510 unchanged lines hidden (view full) --- 1187return 1 for success and 0 for failure. 1188 1189EVP_DecryptInit_ex2() and EVP_DecryptUpdate() return 1 for success and 0 for failure. 1190EVP_DecryptFinal_ex() returns 0 if the decrypt failed or 1 for success. 1191 1192EVP_CipherInit_ex2() and EVP_CipherUpdate() return 1 for success and 0 for failure. 1193EVP_CipherFinal_ex() returns 0 for a decryption failure or 1 for success. 1194 | 669 670=item "aead" (B<OSSL_CIPHER_PARAM_AEAD>) <integer> 671 672Gets 1 if this is an AEAD cipher algorithm, otherwise it gets 0. 673Use (EVP_CIPHER_get_flags(cipher) & EVP_CIPH_FLAG_AEAD_CIPHER) to retrieve the 674cached value. 675 676=item "custom-iv" (B<OSSL_CIPHER_PARAM_CUSTOM_IV>) <integer> --- 510 unchanged lines hidden (view full) --- 1187return 1 for success and 0 for failure. 1188 1189EVP_DecryptInit_ex2() and EVP_DecryptUpdate() return 1 for success and 0 for failure. 1190EVP_DecryptFinal_ex() returns 0 if the decrypt failed or 1 for success. 1191 1192EVP_CipherInit_ex2() and EVP_CipherUpdate() return 1 for success and 0 for failure. 1193EVP_CipherFinal_ex() returns 0 for a decryption failure or 1 for success. 1194 |
| 1195EVP_Cipher() returns the amount of encrypted / decrypted bytes, or -1 1196on failure if the flag B<EVP_CIPH_FLAG_CUSTOM_CIPHER> is set for the 1197cipher. EVP_Cipher() returns 1 on success or 0 on failure, if the flag | 1195EVP_Cipher() returns 1 on success or 0 on failure, if the flag |
| 1198B<EVP_CIPH_FLAG_CUSTOM_CIPHER> is not set for the cipher. | 1196B<EVP_CIPH_FLAG_CUSTOM_CIPHER> is not set for the cipher. |
| 1197EVP_Cipher() returns the number of bytes written to I<out> for encryption / decryption, or 1198the number of bytes authenticated in a call specifying AAD for an AEAD cipher, if the flag 1199B<EVP_CIPH_FLAG_CUSTOM_CIPHER> is set for the cipher. |
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| 1199 1200EVP_CIPHER_CTX_reset() returns 1 for success and 0 for failure. 1201 1202EVP_get_cipherbyname(), EVP_get_cipherbynid() and EVP_get_cipherbyobj() 1203return an B<EVP_CIPHER> structure or NULL on error. 1204 1205EVP_CIPHER_get_nid() and EVP_CIPHER_CTX_get_nid() return a NID. 1206 --- 54 unchanged lines hidden (view full) --- 1261=head1 AEAD INTERFACE 1262 1263The EVP interface for Authenticated Encryption with Associated Data (AEAD) 1264modes are subtly altered and several additional I<ctrl> operations are supported 1265depending on the mode specified. 1266 1267To specify additional authenticated data (AAD), a call to EVP_CipherUpdate(), 1268EVP_EncryptUpdate() or EVP_DecryptUpdate() should be made with the output | 1200 1201EVP_CIPHER_CTX_reset() returns 1 for success and 0 for failure. 1202 1203EVP_get_cipherbyname(), EVP_get_cipherbynid() and EVP_get_cipherbyobj() 1204return an B<EVP_CIPHER> structure or NULL on error. 1205 1206EVP_CIPHER_get_nid() and EVP_CIPHER_CTX_get_nid() return a NID. 1207 --- 54 unchanged lines hidden (view full) --- 1262=head1 AEAD INTERFACE 1263 1264The EVP interface for Authenticated Encryption with Associated Data (AEAD) 1265modes are subtly altered and several additional I<ctrl> operations are supported 1266depending on the mode specified. 1267 1268To specify additional authenticated data (AAD), a call to EVP_CipherUpdate(), 1269EVP_EncryptUpdate() or EVP_DecryptUpdate() should be made with the output |
| 1269parameter I | 1270parameter I<out> set to B<NULL>. In this case, on success, the parameter 1271I<outl> is set to the number of bytes authenticated. |
| 1270 1271When decrypting, the return value of EVP_DecryptFinal() or EVP_CipherFinal() 1272indicates whether the operation was successful. If it does not indicate success, 1273the authentication operation has failed and any output data B<MUST NOT> be used 1274as it is corrupted. 1275 1276=head2 GCM and OCB Modes 1277 --- 460 unchanged lines hidden --- | 1272 1273When decrypting, the return value of EVP_DecryptFinal() or EVP_CipherFinal() 1274indicates whether the operation was successful. If it does not indicate success, 1275the authentication operation has failed and any output data B<MUST NOT> be used 1276as it is corrupted. 1277 1278=head2 GCM and OCB Modes 1279 --- 460 unchanged lines hidden --- |