mirror of https://github.com/openssl/openssl
66 lines
2.0 KiB
C
66 lines
2.0 KiB
C
/*
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* Copyright 1995-2020 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 <stdio.h>
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#include "internal/cryptlib.h"
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#include <openssl/evp.h>
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#include <openssl/encoder.h>
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#include <openssl/buffer.h>
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#include <openssl/x509.h>
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#include "crypto/asn1.h"
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#include "crypto/evp.h"
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int i2d_PrivateKey(const EVP_PKEY *a, unsigned char **pp)
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{
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if (a->ameth && a->ameth->old_priv_encode) {
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return a->ameth->old_priv_encode(a, pp);
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}
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if (a->ameth && a->ameth->priv_encode) {
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PKCS8_PRIV_KEY_INFO *p8 = EVP_PKEY2PKCS8(a);
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int ret = 0;
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if (p8 != NULL) {
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ret = i2d_PKCS8_PRIV_KEY_INFO(p8, pp);
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PKCS8_PRIV_KEY_INFO_free(p8);
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}
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return ret;
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}
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if (a->keymgmt != NULL) {
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const char *encprop = OSSL_ENCODER_PrivateKey_TO_DER_PQ;
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OSSL_ENCODER_CTX *ctx =
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OSSL_ENCODER_CTX_new_by_EVP_PKEY(a, encprop);
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BIO *out = BIO_new(BIO_s_mem());
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BUF_MEM *buf = NULL;
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int ret = -1;
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if (ctx != NULL
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&& out != NULL
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&& OSSL_ENCODER_CTX_get_encoder(ctx) != NULL
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&& OSSL_ENCODER_to_bio(ctx, out)
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&& BIO_get_mem_ptr(out, &buf) > 0) {
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ret = buf->length;
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if (pp != NULL) {
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if (*pp == NULL) {
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*pp = (unsigned char *)buf->data;
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buf->length = 0;
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buf->data = NULL;
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} else {
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memcpy(*pp, buf->data, ret);
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*pp += ret;
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}
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}
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}
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BIO_free(out);
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OSSL_ENCODER_CTX_free(ctx);
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return ret;
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}
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ASN1err(ASN1_F_I2D_PRIVATEKEY, ASN1_R_UNSUPPORTED_PUBLIC_KEY_TYPE);
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return -1;
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}
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