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Diffstat (limited to 'openssl-1.1.0h/crypto/evp/pmeth_fn.c')
-rw-r--r--openssl-1.1.0h/crypto/evp/pmeth_fn.c297
1 files changed, 297 insertions, 0 deletions
diff --git a/openssl-1.1.0h/crypto/evp/pmeth_fn.c b/openssl-1.1.0h/crypto/evp/pmeth_fn.c
new file mode 100644
index 0000000..eb63801
--- /dev/null
+++ b/openssl-1.1.0h/crypto/evp/pmeth_fn.c
@@ -0,0 +1,297 @@
+/*
+ * Copyright 2006-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (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 <stdlib.h>
+#include "internal/cryptlib.h"
+#include <openssl/objects.h>
+#include <openssl/evp.h>
+#include "internal/evp_int.h"
+
+#define M_check_autoarg(ctx, arg, arglen, err) \
+ if (ctx->pmeth->flags & EVP_PKEY_FLAG_AUTOARGLEN) { \
+ size_t pksize = (size_t)EVP_PKEY_size(ctx->pkey); \
+ \
+ if (pksize == 0) { \
+ EVPerr(err, EVP_R_INVALID_KEY); /*ckerr_ignore*/ \
+ return 0; \
+ } \
+ if (!arg) { \
+ *arglen = pksize; \
+ return 1; \
+ } \
+ if (*arglen < pksize) { \
+ EVPerr(err, EVP_R_BUFFER_TOO_SMALL); /*ckerr_ignore*/ \
+ return 0; \
+ } \
+ }
+
+int EVP_PKEY_sign_init(EVP_PKEY_CTX *ctx)
+{
+ int ret;
+ if (!ctx || !ctx->pmeth || !ctx->pmeth->sign) {
+ EVPerr(EVP_F_EVP_PKEY_SIGN_INIT,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
+ ctx->operation = EVP_PKEY_OP_SIGN;
+ if (!ctx->pmeth->sign_init)
+ return 1;
+ ret = ctx->pmeth->sign_init(ctx);
+ if (ret <= 0)
+ ctx->operation = EVP_PKEY_OP_UNDEFINED;
+ return ret;
+}
+
+int EVP_PKEY_sign(EVP_PKEY_CTX *ctx,
+ unsigned char *sig, size_t *siglen,
+ const unsigned char *tbs, size_t tbslen)
+{
+ if (!ctx || !ctx->pmeth || !ctx->pmeth->sign) {
+ EVPerr(EVP_F_EVP_PKEY_SIGN,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
+ if (ctx->operation != EVP_PKEY_OP_SIGN) {
+ EVPerr(EVP_F_EVP_PKEY_SIGN, EVP_R_OPERATON_NOT_INITIALIZED);
+ return -1;
+ }
+ M_check_autoarg(ctx, sig, siglen, EVP_F_EVP_PKEY_SIGN)
+ return ctx->pmeth->sign(ctx, sig, siglen, tbs, tbslen);
+}
+
+int EVP_PKEY_verify_init(EVP_PKEY_CTX *ctx)
+{
+ int ret;
+ if (!ctx || !ctx->pmeth || !ctx->pmeth->verify) {
+ EVPerr(EVP_F_EVP_PKEY_VERIFY_INIT,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
+ ctx->operation = EVP_PKEY_OP_VERIFY;
+ if (!ctx->pmeth->verify_init)
+ return 1;
+ ret = ctx->pmeth->verify_init(ctx);
+ if (ret <= 0)
+ ctx->operation = EVP_PKEY_OP_UNDEFINED;
+ return ret;
+}
+
+int EVP_PKEY_verify(EVP_PKEY_CTX *ctx,
+ const unsigned char *sig, size_t siglen,
+ const unsigned char *tbs, size_t tbslen)
+{
+ if (!ctx || !ctx->pmeth || !ctx->pmeth->verify) {
+ EVPerr(EVP_F_EVP_PKEY_VERIFY,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
+ if (ctx->operation != EVP_PKEY_OP_VERIFY) {
+ EVPerr(EVP_F_EVP_PKEY_VERIFY, EVP_R_OPERATON_NOT_INITIALIZED);
+ return -1;
+ }
+ return ctx->pmeth->verify(ctx, sig, siglen, tbs, tbslen);
+}
+
+int EVP_PKEY_verify_recover_init(EVP_PKEY_CTX *ctx)
+{
+ int ret;
+ if (!ctx || !ctx->pmeth || !ctx->pmeth->verify_recover) {
+ EVPerr(EVP_F_EVP_PKEY_VERIFY_RECOVER_INIT,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
+ ctx->operation = EVP_PKEY_OP_VERIFYRECOVER;
+ if (!ctx->pmeth->verify_recover_init)
+ return 1;
+ ret = ctx->pmeth->verify_recover_init(ctx);
+ if (ret <= 0)
+ ctx->operation = EVP_PKEY_OP_UNDEFINED;
+ return ret;
+}
+
+int EVP_PKEY_verify_recover(EVP_PKEY_CTX *ctx,
+ unsigned char *rout, size_t *routlen,
+ const unsigned char *sig, size_t siglen)
+{
+ if (!ctx || !ctx->pmeth || !ctx->pmeth->verify_recover) {
+ EVPerr(EVP_F_EVP_PKEY_VERIFY_RECOVER,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
+ if (ctx->operation != EVP_PKEY_OP_VERIFYRECOVER) {
+ EVPerr(EVP_F_EVP_PKEY_VERIFY_RECOVER, EVP_R_OPERATON_NOT_INITIALIZED);
+ return -1;
+ }
+ M_check_autoarg(ctx, rout, routlen, EVP_F_EVP_PKEY_VERIFY_RECOVER)
+ return ctx->pmeth->verify_recover(ctx, rout, routlen, sig, siglen);
+}
+
+int EVP_PKEY_encrypt_init(EVP_PKEY_CTX *ctx)
+{
+ int ret;
+ if (!ctx || !ctx->pmeth || !ctx->pmeth->encrypt) {
+ EVPerr(EVP_F_EVP_PKEY_ENCRYPT_INIT,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
+ ctx->operation = EVP_PKEY_OP_ENCRYPT;
+ if (!ctx->pmeth->encrypt_init)
+ return 1;
+ ret = ctx->pmeth->encrypt_init(ctx);
+ if (ret <= 0)
+ ctx->operation = EVP_PKEY_OP_UNDEFINED;
+ return ret;
+}
+
+int EVP_PKEY_encrypt(EVP_PKEY_CTX *ctx,
+ unsigned char *out, size_t *outlen,
+ const unsigned char *in, size_t inlen)
+{
+ if (!ctx || !ctx->pmeth || !ctx->pmeth->encrypt) {
+ EVPerr(EVP_F_EVP_PKEY_ENCRYPT,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
+ if (ctx->operation != EVP_PKEY_OP_ENCRYPT) {
+ EVPerr(EVP_F_EVP_PKEY_ENCRYPT, EVP_R_OPERATON_NOT_INITIALIZED);
+ return -1;
+ }
+ M_check_autoarg(ctx, out, outlen, EVP_F_EVP_PKEY_ENCRYPT)
+ return ctx->pmeth->encrypt(ctx, out, outlen, in, inlen);
+}
+
+int EVP_PKEY_decrypt_init(EVP_PKEY_CTX *ctx)
+{
+ int ret;
+ if (!ctx || !ctx->pmeth || !ctx->pmeth->decrypt) {
+ EVPerr(EVP_F_EVP_PKEY_DECRYPT_INIT,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
+ ctx->operation = EVP_PKEY_OP_DECRYPT;
+ if (!ctx->pmeth->decrypt_init)
+ return 1;
+ ret = ctx->pmeth->decrypt_init(ctx);
+ if (ret <= 0)
+ ctx->operation = EVP_PKEY_OP_UNDEFINED;
+ return ret;
+}
+
+int EVP_PKEY_decrypt(EVP_PKEY_CTX *ctx,
+ unsigned char *out, size_t *outlen,
+ const unsigned char *in, size_t inlen)
+{
+ if (!ctx || !ctx->pmeth || !ctx->pmeth->decrypt) {
+ EVPerr(EVP_F_EVP_PKEY_DECRYPT,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
+ if (ctx->operation != EVP_PKEY_OP_DECRYPT) {
+ EVPerr(EVP_F_EVP_PKEY_DECRYPT, EVP_R_OPERATON_NOT_INITIALIZED);
+ return -1;
+ }
+ M_check_autoarg(ctx, out, outlen, EVP_F_EVP_PKEY_DECRYPT)
+ return ctx->pmeth->decrypt(ctx, out, outlen, in, inlen);
+}
+
+int EVP_PKEY_derive_init(EVP_PKEY_CTX *ctx)
+{
+ int ret;
+ if (!ctx || !ctx->pmeth || !ctx->pmeth->derive) {
+ EVPerr(EVP_F_EVP_PKEY_DERIVE_INIT,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
+ ctx->operation = EVP_PKEY_OP_DERIVE;
+ if (!ctx->pmeth->derive_init)
+ return 1;
+ ret = ctx->pmeth->derive_init(ctx);
+ if (ret <= 0)
+ ctx->operation = EVP_PKEY_OP_UNDEFINED;
+ return ret;
+}
+
+int EVP_PKEY_derive_set_peer(EVP_PKEY_CTX *ctx, EVP_PKEY *peer)
+{
+ int ret;
+ if (!ctx || !ctx->pmeth
+ || !(ctx->pmeth->derive || ctx->pmeth->encrypt || ctx->pmeth->decrypt)
+ || !ctx->pmeth->ctrl) {
+ EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
+ if (ctx->operation != EVP_PKEY_OP_DERIVE
+ && ctx->operation != EVP_PKEY_OP_ENCRYPT
+ && ctx->operation != EVP_PKEY_OP_DECRYPT) {
+ EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER,
+ EVP_R_OPERATON_NOT_INITIALIZED);
+ return -1;
+ }
+
+ ret = ctx->pmeth->ctrl(ctx, EVP_PKEY_CTRL_PEER_KEY, 0, peer);
+
+ if (ret <= 0)
+ return ret;
+
+ if (ret == 2)
+ return 1;
+
+ if (!ctx->pkey) {
+ EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER, EVP_R_NO_KEY_SET);
+ return -1;
+ }
+
+ if (ctx->pkey->type != peer->type) {
+ EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER, EVP_R_DIFFERENT_KEY_TYPES);
+ return -1;
+ }
+
+ /*
+ * ran@cryptocom.ru: For clarity. The error is if parameters in peer are
+ * present (!missing) but don't match. EVP_PKEY_cmp_parameters may return
+ * 1 (match), 0 (don't match) and -2 (comparison is not defined). -1
+ * (different key types) is impossible here because it is checked earlier.
+ * -2 is OK for us here, as well as 1, so we can check for 0 only.
+ */
+ if (!EVP_PKEY_missing_parameters(peer) &&
+ !EVP_PKEY_cmp_parameters(ctx->pkey, peer)) {
+ EVPerr(EVP_F_EVP_PKEY_DERIVE_SET_PEER, EVP_R_DIFFERENT_PARAMETERS);
+ return -1;
+ }
+
+ EVP_PKEY_free(ctx->peerkey);
+ ctx->peerkey = peer;
+
+ ret = ctx->pmeth->ctrl(ctx, EVP_PKEY_CTRL_PEER_KEY, 1, peer);
+
+ if (ret <= 0) {
+ ctx->peerkey = NULL;
+ return ret;
+ }
+
+ EVP_PKEY_up_ref(peer);
+ return 1;
+}
+
+int EVP_PKEY_derive(EVP_PKEY_CTX *ctx, unsigned char *key, size_t *pkeylen)
+{
+ if (!ctx || !ctx->pmeth || !ctx->pmeth->derive) {
+ EVPerr(EVP_F_EVP_PKEY_DERIVE,
+ EVP_R_OPERATION_NOT_SUPPORTED_FOR_THIS_KEYTYPE);
+ return -2;
+ }
+ if (ctx->operation != EVP_PKEY_OP_DERIVE) {
+ EVPerr(EVP_F_EVP_PKEY_DERIVE, EVP_R_OPERATON_NOT_INITIALIZED);
+ return -1;
+ }
+ M_check_autoarg(ctx, key, pkeylen, EVP_F_EVP_PKEY_DERIVE)
+ return ctx->pmeth->derive(ctx, key, pkeylen);
+}
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