| /* |
| * Copyright 2000-2021 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 |
| * in the file LICENSE in the source distribution or at |
| * https://www.openssl.org/source/license.html |
| */ |
| |
| #include <stdio.h> |
| #include "internal/cryptlib.h" |
| #include <openssl/objects.h> |
| #include <openssl/x509.h> |
| #include <openssl/pem.h> |
| #include <openssl/x509v3.h> |
| #include <openssl/ocsp.h> |
| #include "ocsp_local.h" |
| #include <openssl/asn1t.h> |
| |
| /* Convert a certificate and its issuer to an OCSP_CERTID */ |
| |
| OCSP_CERTID *OCSP_cert_to_id(const EVP_MD *dgst, const X509 *subject, |
| const X509 *issuer) |
| { |
| const X509_NAME *iname; |
| const ASN1_INTEGER *serial; |
| ASN1_BIT_STRING *ikey; |
| |
| if (!dgst) |
| dgst = EVP_sha1(); |
| if (subject) { |
| iname = X509_get_issuer_name(subject); |
| serial = X509_get0_serialNumber(subject); |
| } else { |
| iname = X509_get_subject_name(issuer); |
| serial = NULL; |
| } |
| ikey = X509_get0_pubkey_bitstr(issuer); |
| return OCSP_cert_id_new(dgst, iname, ikey, serial); |
| } |
| |
| OCSP_CERTID *OCSP_cert_id_new(const EVP_MD *dgst, |
| const X509_NAME *issuerName, |
| const ASN1_BIT_STRING *issuerKey, |
| const ASN1_INTEGER *serialNumber) |
| { |
| int nid; |
| unsigned int i; |
| X509_ALGOR *alg; |
| OCSP_CERTID *cid = NULL; |
| unsigned char md[EVP_MAX_MD_SIZE]; |
| |
| if ((cid = OCSP_CERTID_new()) == NULL) |
| goto err; |
| |
| alg = &cid->hashAlgorithm; |
| ASN1_OBJECT_free(alg->algorithm); |
| if ((nid = EVP_MD_get_type(dgst)) == NID_undef) { |
| ERR_raise(ERR_LIB_OCSP, OCSP_R_UNKNOWN_NID); |
| goto err; |
| } |
| if ((alg->algorithm = OBJ_nid2obj(nid)) == NULL) |
| goto err; |
| if ((alg->parameter = ASN1_TYPE_new()) == NULL) |
| goto err; |
| alg->parameter->type = V_ASN1_NULL; |
| |
| if (!X509_NAME_digest(issuerName, dgst, md, &i)) |
| goto digerr; |
| if (!(ASN1_OCTET_STRING_set(&cid->issuerNameHash, md, i))) |
| goto err; |
| |
| /* Calculate the issuerKey hash, excluding tag and length */ |
| if (!EVP_Digest(issuerKey->data, issuerKey->length, md, &i, dgst, NULL)) |
| goto err; |
| |
| if (!(ASN1_OCTET_STRING_set(&cid->issuerKeyHash, md, i))) |
| goto err; |
| |
| if (serialNumber) { |
| if (ASN1_STRING_copy(&cid->serialNumber, serialNumber) == 0) |
| goto err; |
| } |
| return cid; |
| digerr: |
| ERR_raise(ERR_LIB_OCSP, OCSP_R_DIGEST_ERR); |
| err: |
| OCSP_CERTID_free(cid); |
| return NULL; |
| } |
| |
| int OCSP_id_issuer_cmp(const OCSP_CERTID *a, const OCSP_CERTID *b) |
| { |
| int ret; |
| ret = OBJ_cmp(a->hashAlgorithm.algorithm, b->hashAlgorithm.algorithm); |
| if (ret) |
| return ret; |
| ret = ASN1_OCTET_STRING_cmp(&a->issuerNameHash, &b->issuerNameHash); |
| if (ret) |
| return ret; |
| return ASN1_OCTET_STRING_cmp(&a->issuerKeyHash, &b->issuerKeyHash); |
| } |
| |
| int OCSP_id_cmp(const OCSP_CERTID *a, const OCSP_CERTID *b) |
| { |
| int ret; |
| ret = OCSP_id_issuer_cmp(a, b); |
| if (ret) |
| return ret; |
| return ASN1_INTEGER_cmp(&a->serialNumber, &b->serialNumber); |
| } |
| |
| IMPLEMENT_ASN1_DUP_FUNCTION(OCSP_CERTID) |