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crypto/evp/signature.c: add checks for consistent presence of 'update' and 'final' functions 

Reviewed-by: Nicola Tuveri <nic.tuv@gmail.com>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/27367)
This commit is contained in:
Dr. David von Oheimb 2025-04-16 06:20:23 +02:00 committed by Tomas Mraz
parent 1146b74a8a
commit 8626a716b0
1 changed files with 29 additions and 0 deletions
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29
crypto/evp/signature.c
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@ -421,6 +421,35 @@ static void *evp_signature_from_algorithm(int name_id,
goto err;
}
if ((signature->sign_message_update == NULL) !=
(signature->sign_message_final == NULL)) {
ERR_raise_data(ERR_LIB_EVP, EVP_R_INVALID_PROVIDER_FUNCTIONS,
"only one of %s message signing update and final available:%s",
signature->type_name, desc);
goto err;
}
if ((signature->verify_message_update == NULL) !=
(signature->verify_message_final == NULL)) {
ERR_raise_data(ERR_LIB_EVP, EVP_R_INVALID_PROVIDER_FUNCTIONS,
"only one of %s message verification update and final available:%s",
signature->type_name, desc);
goto err;
}
if ((signature->digest_sign_update == NULL) !=
(signature->digest_sign_final == NULL)) {
ERR_raise_data(ERR_LIB_EVP, EVP_R_INVALID_PROVIDER_FUNCTIONS,
"only one of %s digest signing update and final available:%s",
signature->type_name, desc);
goto err;
}
if ((signature->digest_verify_update == NULL) !=
(signature->digest_verify_final == NULL)) {
ERR_raise_data(ERR_LIB_EVP, EVP_R_INVALID_PROVIDER_FUNCTIONS,
"only one of %s digest verification update and final available:%s",
signature->type_name, desc);
goto err;
}
return signature;
err:
EVP_SIGNATURE_free(signature);