Fix documentation around AAD and return values in EVP_Cipher*

Fixes #21485

Reviewed-by: Tomas Mraz <tomas@openssl.org>
Reviewed-by: Paul Dale <pauli@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/21494)
This commit is contained in:
Samuel Lee 2023-07-19 11:04:12 -07:00 committed by Pauli
parent 5be15438fc
commit 51a7066e20

View File

@ -1244,10 +1244,11 @@ EVP_DecryptFinal_ex() returns 0 if the decrypt failed or 1 for success.
EVP_CipherInit_ex2() and EVP_CipherUpdate() return 1 for success and 0 for failure.
EVP_CipherFinal_ex() returns 0 for a decryption failure or 1 for success.
EVP_Cipher() returns the amount of encrypted / decrypted bytes, or -1
on failure if the flag B<EVP_CIPH_FLAG_CUSTOM_CIPHER> is set for the
cipher. EVP_Cipher() returns 1 on success or 0 on failure, if the flag
EVP_Cipher() returns 1 on success or 0 on failure, if the flag
B<EVP_CIPH_FLAG_CUSTOM_CIPHER> is not set for the cipher.
EVP_Cipher() returns the number of bytes written to I<out> for encryption / decryption, or
the number of bytes authenticated in a call specifying AAD for an AEAD cipher, if the flag
B<EVP_CIPH_FLAG_CUSTOM_CIPHER> is set for the cipher.
EVP_CIPHER_CTX_reset() returns 1 for success and 0 for failure.
@ -1318,7 +1319,8 @@ depending on the mode specified.
To specify additional authenticated data (AAD), a call to EVP_CipherUpdate(),
EVP_EncryptUpdate() or EVP_DecryptUpdate() should be made with the output
parameter I<out> set to B<NULL>.
parameter I<out> set to B<NULL>. In this case, on success, the parameter
I<outl> is set to the number of bytes authenticated.
When decrypting, the return value of EVP_DecryptFinal() or EVP_CipherFinal()
indicates whether the operation was successful. If it does not indicate success,