diff options
Diffstat (limited to 'crypto/x509/v3_skey.c')
-rw-r--r-- | crypto/x509/v3_skey.c | 106 |
1 files changed, 106 insertions, 0 deletions
diff --git a/crypto/x509/v3_skey.c b/crypto/x509/v3_skey.c new file mode 100644 index 0000000000..f8a780d916 --- /dev/null +++ b/crypto/x509/v3_skey.c @@ -0,0 +1,106 @@ +/* + * Copyright 1999-2016 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/x509v3.h> +#include "internal/x509_int.h" +#include "ext_dat.h" + +static ASN1_OCTET_STRING *s2i_skey_id(X509V3_EXT_METHOD *method, + X509V3_CTX *ctx, char *str); +const X509V3_EXT_METHOD v3_skey_id = { + NID_subject_key_identifier, 0, ASN1_ITEM_ref(ASN1_OCTET_STRING), + 0, 0, 0, 0, + (X509V3_EXT_I2S)i2s_ASN1_OCTET_STRING, + (X509V3_EXT_S2I)s2i_skey_id, + 0, 0, 0, 0, + NULL +}; + +char *i2s_ASN1_OCTET_STRING(X509V3_EXT_METHOD *method, + const ASN1_OCTET_STRING *oct) +{ + return OPENSSL_buf2hexstr(oct->data, oct->length); +} + +ASN1_OCTET_STRING *s2i_ASN1_OCTET_STRING(X509V3_EXT_METHOD *method, + X509V3_CTX *ctx, const char *str) +{ + ASN1_OCTET_STRING *oct; + long length; + + if ((oct = ASN1_OCTET_STRING_new()) == NULL) { + X509V3err(X509V3_F_S2I_ASN1_OCTET_STRING, ERR_R_MALLOC_FAILURE); + return NULL; + } + + if ((oct->data = OPENSSL_hexstr2buf(str, &length)) == NULL) { + ASN1_OCTET_STRING_free(oct); + return NULL; + } + + oct->length = length; + + return oct; + +} + +static ASN1_OCTET_STRING *s2i_skey_id(X509V3_EXT_METHOD *method, + X509V3_CTX *ctx, char *str) +{ + ASN1_OCTET_STRING *oct; + X509_PUBKEY *pubkey; + const unsigned char *pk; + int pklen; + unsigned char pkey_dig[EVP_MAX_MD_SIZE]; + unsigned int diglen; + + if (strcmp(str, "hash")) + return s2i_ASN1_OCTET_STRING(method, ctx, str); + + if ((oct = ASN1_OCTET_STRING_new()) == NULL) { + X509V3err(X509V3_F_S2I_SKEY_ID, ERR_R_MALLOC_FAILURE); + return NULL; + } + + if (ctx && (ctx->flags == CTX_TEST)) + return oct; + + if (!ctx || (!ctx->subject_req && !ctx->subject_cert)) { + X509V3err(X509V3_F_S2I_SKEY_ID, X509V3_R_NO_PUBLIC_KEY); + goto err; + } + + if (ctx->subject_req) + pubkey = ctx->subject_req->req_info.pubkey; + else + pubkey = ctx->subject_cert->cert_info.key; + + if (pubkey == NULL) { + X509V3err(X509V3_F_S2I_SKEY_ID, X509V3_R_NO_PUBLIC_KEY); + goto err; + } + + X509_PUBKEY_get0_param(NULL, &pk, &pklen, NULL, pubkey); + + if (!EVP_Digest(pk, pklen, pkey_dig, &diglen, EVP_sha1(), NULL)) + goto err; + + if (!ASN1_OCTET_STRING_set(oct, pkey_dig, diglen)) { + X509V3err(X509V3_F_S2I_SKEY_ID, ERR_R_MALLOC_FAILURE); + goto err; + } + + return oct; + + err: + ASN1_OCTET_STRING_free(oct); + return NULL; +} |