/*
- * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 1995-2023 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the Apache License 2.0 (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
#include <openssl/evp.h>
#include "crypto/asn1.h"
#include "crypto/evp.h"
+#include "crypto/rsa.h"
-#ifndef NO_ASN1_OLD
+#ifndef OPENSSL_NO_DEPRECATED_3_0
int ASN1_verify(i2d_of_void *i2d, X509_ALGOR *a, ASN1_BIT_STRING *signature,
char *data, EVP_PKEY *pkey)
int ret = -1, i, inl;
if (ctx == NULL) {
- ASN1err(ASN1_F_ASN1_VERIFY, ERR_R_MALLOC_FAILURE);
+ ERR_raise(ERR_LIB_ASN1, ERR_R_EVP_LIB);
goto err;
}
i = OBJ_obj2nid(a->algorithm);
type = EVP_get_digestbyname(OBJ_nid2sn(i));
if (type == NULL) {
- ASN1err(ASN1_F_ASN1_VERIFY, ASN1_R_UNKNOWN_MESSAGE_DIGEST_ALGORITHM);
+ ERR_raise(ERR_LIB_ASN1, ASN1_R_UNKNOWN_MESSAGE_DIGEST_ALGORITHM);
goto err;
}
if (signature->type == V_ASN1_BIT_STRING && signature->flags & 0x7) {
- ASN1err(ASN1_F_ASN1_VERIFY, ASN1_R_INVALID_BIT_STRING_BITS_LEFT);
+ ERR_raise(ERR_LIB_ASN1, ASN1_R_INVALID_BIT_STRING_BITS_LEFT);
goto err;
}
inl = i2d(data, NULL);
if (inl <= 0) {
- ASN1err(ASN1_F_ASN1_VERIFY, ERR_R_INTERNAL_ERROR);
+ ERR_raise(ERR_LIB_ASN1, ERR_R_INTERNAL_ERROR);
goto err;
}
buf_in = OPENSSL_malloc((unsigned int)inl);
- if (buf_in == NULL) {
- ASN1err(ASN1_F_ASN1_VERIFY, ERR_R_MALLOC_FAILURE);
+ if (buf_in == NULL)
goto err;
- }
p = buf_in;
i2d(data, &p);
OPENSSL_clear_free(buf_in, (unsigned int)inl);
if (!ret) {
- ASN1err(ASN1_F_ASN1_VERIFY, ERR_R_EVP_LIB);
+ ERR_raise(ERR_LIB_ASN1, ERR_R_EVP_LIB);
goto err;
}
ret = -1;
if (EVP_VerifyFinal(ctx, (unsigned char *)signature->data,
(unsigned int)signature->length, pkey) <= 0) {
- ASN1err(ASN1_F_ASN1_VERIFY, ERR_R_EVP_LIB);
+ ERR_raise(ERR_LIB_ASN1, ERR_R_EVP_LIB);
ret = 0;
goto err;
}
#endif
-int ASN1_item_verify(const ASN1_ITEM *it, X509_ALGOR *a,
- ASN1_BIT_STRING *signature, void *asn, EVP_PKEY *pkey)
+int ASN1_item_verify(const ASN1_ITEM *it, const X509_ALGOR *alg,
+ const ASN1_BIT_STRING *signature, const void *data,
+ EVP_PKEY *pkey)
{
- EVP_MD_CTX *ctx = NULL;
+ return ASN1_item_verify_ex(it, alg, signature, data, NULL, pkey, NULL, NULL);
+}
+
+int ASN1_item_verify_ex(const ASN1_ITEM *it, const X509_ALGOR *alg,
+ const ASN1_BIT_STRING *signature, const void *data,
+ const ASN1_OCTET_STRING *id, EVP_PKEY *pkey,
+ OSSL_LIB_CTX *libctx, const char *propq)
+{
+ EVP_MD_CTX *ctx;
+ int rv = -1;
+
+ if ((ctx = evp_md_ctx_new_ex(pkey, id, libctx, propq)) != NULL) {
+ rv = ASN1_item_verify_ctx(it, alg, signature, data, ctx);
+ EVP_PKEY_CTX_free(EVP_MD_CTX_get_pkey_ctx(ctx));
+ EVP_MD_CTX_free(ctx);
+ }
+ return rv;
+}
+
+int ASN1_item_verify_ctx(const ASN1_ITEM *it, const X509_ALGOR *alg,
+ const ASN1_BIT_STRING *signature, const void *data,
+ EVP_MD_CTX *ctx)
+{
+ EVP_PKEY *pkey;
unsigned char *buf_in = NULL;
int ret = -1, inl = 0;
int mdnid, pknid;
size_t inll = 0;
+ pkey = EVP_PKEY_CTX_get0_pkey(EVP_MD_CTX_get_pkey_ctx(ctx));
+
if (pkey == NULL) {
- ASN1err(ASN1_F_ASN1_ITEM_VERIFY, ERR_R_PASSED_NULL_PARAMETER);
+ ERR_raise(ERR_LIB_ASN1, ERR_R_PASSED_NULL_PARAMETER);
return -1;
}
if (signature->type == V_ASN1_BIT_STRING && signature->flags & 0x7) {
- ASN1err(ASN1_F_ASN1_ITEM_VERIFY, ASN1_R_INVALID_BIT_STRING_BITS_LEFT);
+ ERR_raise(ERR_LIB_ASN1, ASN1_R_INVALID_BIT_STRING_BITS_LEFT);
return -1;
}
- ctx = EVP_MD_CTX_new();
- if (ctx == NULL) {
- ASN1err(ASN1_F_ASN1_ITEM_VERIFY, ERR_R_MALLOC_FAILURE);
- goto err;
- }
-
/* Convert signature OID into digest and public key OIDs */
- if (!OBJ_find_sigid_algs(OBJ_obj2nid(a->algorithm), &mdnid, &pknid)) {
- ASN1err(ASN1_F_ASN1_ITEM_VERIFY, ASN1_R_UNKNOWN_SIGNATURE_ALGORITHM);
+ if (!OBJ_find_sigid_algs(OBJ_obj2nid(alg->algorithm), &mdnid, &pknid)) {
+ ERR_raise(ERR_LIB_ASN1, ASN1_R_UNKNOWN_SIGNATURE_ALGORITHM);
goto err;
}
- if (mdnid == NID_undef) {
+
+ if (mdnid == NID_undef && evp_pkey_is_legacy(pkey)) {
if (pkey->ameth == NULL || pkey->ameth->item_verify == NULL) {
- ASN1err(ASN1_F_ASN1_ITEM_VERIFY,
- ASN1_R_UNKNOWN_SIGNATURE_ALGORITHM);
+ ERR_raise(ERR_LIB_ASN1, ASN1_R_UNKNOWN_SIGNATURE_ALGORITHM);
goto err;
}
- ret = pkey->ameth->item_verify(ctx, it, asn, a, signature, pkey);
+ ret = pkey->ameth->item_verify(ctx, it, data, alg, signature, pkey);
/*
- * Return value of 2 means carry on, anything else means we exit
- * straight away: either a fatal error of the underlying verification
- * routine handles all verification.
+ * Return values meaning:
+ * <=0: error.
+ * 1: method does everything.
+ * 2: carry on as normal, method has called EVP_DigestVerifyInit()
*/
- if (ret != 2)
+ if (ret <= 0)
+ ERR_raise(ERR_LIB_ASN1, ERR_R_EVP_LIB);
+ if (ret <= 1)
goto err;
- ret = -1;
} else {
- const EVP_MD *type = EVP_get_digestbynid(mdnid);
+ const EVP_MD *type = NULL;
- if (type == NULL) {
- ASN1err(ASN1_F_ASN1_ITEM_VERIFY,
- ASN1_R_UNKNOWN_MESSAGE_DIGEST_ALGORITHM);
- goto err;
- }
-
- /* Check public key OID matches public key type */
- if (EVP_PKEY_type(pknid) != pkey->ameth->pkey_id) {
- ASN1err(ASN1_F_ASN1_ITEM_VERIFY, ASN1_R_WRONG_PUBLIC_KEY_TYPE);
- goto err;
- }
-
- if (!EVP_DigestVerifyInit(ctx, NULL, type, NULL, pkey)) {
- ASN1err(ASN1_F_ASN1_ITEM_VERIFY, ERR_R_EVP_LIB);
- ret = 0;
- goto err;
+ /*
+ * We don't yet have the ability for providers to be able to handle
+ * X509_ALGOR style parameters. Fortunately the only one that needs this
+ * so far is RSA-PSS, so we just special case this for now. In some
+ * future version of OpenSSL we should push this to the provider.
+ */
+ if (mdnid == NID_undef && pknid == EVP_PKEY_RSA_PSS) {
+ if (!EVP_PKEY_is_a(pkey, "RSA") && !EVP_PKEY_is_a(pkey, "RSA-PSS")) {
+ ERR_raise(ERR_LIB_ASN1, ASN1_R_WRONG_PUBLIC_KEY_TYPE);
+ goto err;
+ }
+ /* This function also calls EVP_DigestVerifyInit */
+ if (ossl_rsa_pss_to_ctx(ctx, NULL, alg, pkey) <= 0) {
+ ERR_raise(ERR_LIB_ASN1, ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+ } else {
+ /* Check public key OID matches public key type */
+ if (!EVP_PKEY_is_a(pkey, OBJ_nid2sn(pknid))) {
+ ERR_raise(ERR_LIB_ASN1, ASN1_R_WRONG_PUBLIC_KEY_TYPE);
+ goto err;
+ }
+
+ if (mdnid != NID_undef) {
+ type = EVP_get_digestbynid(mdnid);
+ if (type == NULL) {
+ ERR_raise_data(ERR_LIB_ASN1,
+ ASN1_R_UNKNOWN_MESSAGE_DIGEST_ALGORITHM,
+ "nid=0x%x", mdnid);
+ goto err;
+ }
+ }
+
+ /*
+ * Note that some algorithms (notably Ed25519 and Ed448) may allow
+ * a NULL digest value.
+ */
+ if (!EVP_DigestVerifyInit(ctx, NULL, type, NULL, pkey)) {
+ ERR_raise(ERR_LIB_ASN1, ERR_R_EVP_LIB);
+ ret = 0;
+ goto err;
+ }
}
}
- inl = ASN1_item_i2d(asn, &buf_in, it);
+ inl = ASN1_item_i2d(data, &buf_in, it);
if (inl <= 0) {
- ASN1err(ASN1_F_ASN1_ITEM_VERIFY, ERR_R_INTERNAL_ERROR);
+ ERR_raise(ERR_LIB_ASN1, ERR_R_INTERNAL_ERROR);
goto err;
}
if (buf_in == NULL) {
- ASN1err(ASN1_F_ASN1_ITEM_VERIFY, ERR_R_MALLOC_FAILURE);
+ ERR_raise(ERR_LIB_ASN1, ERR_R_ASN1_LIB);
goto err;
}
inll = inl;
ret = EVP_DigestVerify(ctx, signature->data, (size_t)signature->length,
buf_in, inl);
if (ret <= 0) {
- ASN1err(ASN1_F_ASN1_ITEM_VERIFY, ERR_R_EVP_LIB);
+ ERR_raise(ERR_LIB_ASN1, ERR_R_EVP_LIB);
goto err;
}
ret = 1;
err:
OPENSSL_clear_free(buf_in, inll);
- EVP_MD_CTX_free(ctx);
return ret;
}
projects / openssl.git / blobdiff