mirror of https://github.com/openssl/openssl
117 lines
3.5 KiB
C
117 lines
3.5 KiB
C
/*
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* Copyright 2020 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#include <openssl/core_names.h>
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#include <openssl/bio.h>
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#include <openssl/err.h>
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#include <openssl/buffer.h>
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#include <openssl/pem.h> /* For public PEM and PVK functions */
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#include <openssl/pkcs12.h>
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#include "internal/pem.h" /* For internal PVK and "blob" functions */
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#include "internal/cryptlib.h"
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#include "internal/asn1.h"
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#include "internal/passphrase.h"
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#include "prov/bio.h" /* ossl_prov_bio_printf() */
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#include "prov/providercommonerr.h" /* PROV_R_READ_KEY */
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#include "encoder_local.h"
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int ossl_prov_read_der(PROV_CTX *provctx, OSSL_CORE_BIO *cin,
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unsigned char **data, long *len)
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{
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BUF_MEM *mem = NULL;
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BIO *in = bio_new_from_core_bio(provctx, cin);
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int ok = (asn1_d2i_read_bio(in, &mem) >= 0);
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if (ok) {
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*data = (unsigned char *)mem->data;
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*len = (long)mem->length;
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OPENSSL_free(mem);
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}
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BIO_free(in);
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return ok;
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}
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int ossl_prov_read_pem(PROV_CTX *provctx, OSSL_CORE_BIO *cin,
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char **pem_name, char **pem_header,
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unsigned char **data, long *len)
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{
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BIO *in = bio_new_from_core_bio(provctx, cin);
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int ok = (PEM_read_bio(in, pem_name, pem_header, data, len) > 0);
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BIO_free(in);
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return ok;
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}
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#ifndef OPENSSL_NO_DSA
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EVP_PKEY *ossl_prov_read_msblob(PROV_CTX *provctx, OSSL_CORE_BIO *cin,
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int *ispub)
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{
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BIO *in = bio_new_from_core_bio(provctx, cin);
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EVP_PKEY *pkey = ossl_b2i_bio(in, ispub);
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BIO_free(in);
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return pkey;
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}
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# ifndef OPENSSL_NO_RC4
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EVP_PKEY *ossl_prov_read_pvk(PROV_CTX *provctx, OSSL_CORE_BIO *cin,
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OSSL_PASSPHRASE_CALLBACK *pw_cb, void *pw_cbarg)
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{
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BIO *in = NULL;
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EVP_PKEY *pkey = NULL;
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struct ossl_passphrase_data_st pwdata;
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memset(&pwdata, 0, sizeof(pwdata));
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if (!ossl_pw_set_ossl_passphrase_cb(&pwdata, pw_cb, pw_cbarg))
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return NULL;
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in = bio_new_from_core_bio(provctx, cin);
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pkey = b2i_PVK_bio(in, ossl_pw_pem_password, &pwdata);
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BIO_free(in);
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return pkey;
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}
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# endif
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#endif
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int ossl_prov_der_from_p8(unsigned char **new_der, long *new_der_len,
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unsigned char *input_der, long input_der_len,
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OSSL_PASSPHRASE_CALLBACK *pw_cb, void *pw_cbarg)
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{
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const unsigned char *derp;
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X509_SIG *p8 = NULL;
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int ok = 0;
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if (!ossl_assert(new_der != NULL && *new_der == NULL)
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|| !ossl_assert(new_der_len != NULL))
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return 0;
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derp = input_der;
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if ((p8 = d2i_X509_SIG(NULL, &derp, input_der_len)) != NULL) {
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char pbuf[PEM_BUFSIZE];
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size_t plen = 0;
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if (!pw_cb(pbuf, sizeof(pbuf), &plen, NULL, pw_cbarg)) {
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ERR_raise(ERR_LIB_PROV, PROV_R_READ_KEY);
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} else {
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const X509_ALGOR *alg = NULL;
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const ASN1_OCTET_STRING *oct = NULL;
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int len = 0;
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X509_SIG_get0(p8, &alg, &oct);
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if (PKCS12_pbe_crypt(alg, pbuf, plen, oct->data, oct->length,
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new_der, &len, 0) != NULL)
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ok = 1;
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*new_der_len = len;
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}
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}
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X509_SIG_free(p8);
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return ok;
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}
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