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@ -24,13 +24,14 @@ unsigned char *PKCS12_pbe_crypt(const X509_ALGOR *algor,
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unsigned char *out = NULL;
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int outlen, i;
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EVP_CIPHER_CTX *ctx = EVP_CIPHER_CTX_new();
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int max_out_len, mac_len = 0;
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if (ctx == NULL) {
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PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT, ERR_R_MALLOC_FAILURE);
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goto err;
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}
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/* Decrypt data */
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/* Process data */
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if (!EVP_PBE_CipherInit(algor->algorithm, pass, passlen,
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algor->parameter, ctx, en_de)) {
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PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT,
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@ -38,8 +39,37 @@ unsigned char *PKCS12_pbe_crypt(const X509_ALGOR *algor,
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goto err;
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}
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if ((out = OPENSSL_malloc(inlen + EVP_CIPHER_CTX_block_size(ctx)))
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== NULL) {
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/*
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* GOST algorithm specifics:
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* OMAC algorithm calculate and encrypt MAC of the encrypted objects
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* It's appended to encrypted text on encrypting
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* MAC should be processed on decrypting separately from plain text
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*/
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max_out_len = inlen + EVP_CIPHER_CTX_block_size(ctx);
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if (EVP_CIPHER_flags(EVP_CIPHER_CTX_cipher(ctx)) & EVP_CIPH_FLAG_CIPHER_WITH_MAC) {
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if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_TLS1_AAD, 0, &mac_len) < 0) {
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PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT, ERR_R_INTERNAL_ERROR);
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goto err;
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}
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if (EVP_CIPHER_CTX_encrypting(ctx)) {
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max_out_len += mac_len;
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} else {
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if (inlen < mac_len) {
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PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT,
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PKCS12_R_UNSUPPORTED_PKCS12_MODE);
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goto err;
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}
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inlen -= mac_len;
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if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_SET_TAG,
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(int)mac_len, (unsigned char *)in+inlen) < 0) {
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PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT, ERR_R_INTERNAL_ERROR);
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goto err;
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}
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}
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}
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if ((out = OPENSSL_malloc(max_out_len)) == NULL) {
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PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT, ERR_R_MALLOC_FAILURE);
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goto err;
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}
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@ -60,6 +90,16 @@ unsigned char *PKCS12_pbe_crypt(const X509_ALGOR *algor,
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goto err;
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}
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outlen += i;
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if (EVP_CIPHER_flags(EVP_CIPHER_CTX_cipher(ctx)) & EVP_CIPH_FLAG_CIPHER_WITH_MAC) {
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if (EVP_CIPHER_CTX_encrypting(ctx)) {
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if (EVP_CIPHER_CTX_ctrl(ctx, EVP_CTRL_AEAD_GET_TAG,
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(int)mac_len, out+outlen) < 0) {
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PKCS12err(PKCS12_F_PKCS12_PBE_CRYPT, ERR_R_INTERNAL_ERROR);
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goto err;
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}
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outlen += mac_len;
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}
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}
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if (datalen)
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*datalen = outlen;
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if (data)
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@ -79,10 +119,10 @@ void *PKCS12_item_decrypt_d2i(const X509_ALGOR *algor, const ASN1_ITEM *it,
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const char *pass, int passlen,
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const ASN1_OCTET_STRING *oct, int zbuf)
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{
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unsigned char *out;
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unsigned char *out = NULL;
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const unsigned char *p;
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void *ret;
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int outlen;
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int outlen = 0;
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if (!PKCS12_pbe_crypt(algor, pass, passlen, oct->data, oct->length,
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&out, &outlen, 0)) {
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