Upgrade openssl from 1.1.0e to 1.1.1b, with source code. 4.0.78

trunk/3rdparty/openssl-1.1-fit/crypto/sm2/sm2_pmeth.c

@@ -0,0 +1,325 @@
+/*
+ * Copyright 2006-2018 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 "internal/cryptlib.h"
+#include <openssl/asn1t.h>
+#include <openssl/ec.h>
+#include <openssl/evp.h>
+#include "internal/evp_int.h"
+#include "internal/sm2.h"
+#include "internal/sm2err.h"
+
+/* EC pkey context structure */
+
+typedef struct {
+    /* Key and paramgen group */
+    EC_GROUP *gen_group;
+    /* message digest */
+    const EVP_MD *md;
+    /* Distinguishing Identifier, ISO/IEC 15946-3 */
+    uint8_t *id;
+    size_t id_len;
+    /* id_set indicates if the 'id' field is set (1) or not (0) */
+    int id_set;
+} SM2_PKEY_CTX;
+
+static int pkey_sm2_init(EVP_PKEY_CTX *ctx)
+{
+    SM2_PKEY_CTX *smctx;
+
+    if ((smctx = OPENSSL_zalloc(sizeof(*smctx))) == NULL) {
+        SM2err(SM2_F_PKEY_SM2_INIT, ERR_R_MALLOC_FAILURE);
+        return 0;
+    }
+
+    ctx->data = smctx;
+    return 1;
+}
+
+static void pkey_sm2_cleanup(EVP_PKEY_CTX *ctx)
+{
+    SM2_PKEY_CTX *smctx = ctx->data;
+
+    if (smctx != NULL) {
+        EC_GROUP_free(smctx->gen_group);
+        OPENSSL_free(smctx->id);
+        OPENSSL_free(smctx);
+        ctx->data = NULL;
+    }
+}
+
+static int pkey_sm2_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src)
+{
+    SM2_PKEY_CTX *dctx, *sctx;
+
+    if (!pkey_sm2_init(dst))
+        return 0;
+    sctx = src->data;
+    dctx = dst->data;
+    if (sctx->gen_group != NULL) {
+        dctx->gen_group = EC_GROUP_dup(sctx->gen_group);
+        if (dctx->gen_group == NULL) {
+            pkey_sm2_cleanup(dst);
+            return 0;
+        }
+    }
+    if (sctx->id != NULL) {
+        dctx->id = OPENSSL_malloc(sctx->id_len);
+        if (dctx->id == NULL) {
+            SM2err(SM2_F_PKEY_SM2_COPY, ERR_R_MALLOC_FAILURE);
+            pkey_sm2_cleanup(dst);
+            return 0;
+        }
+        memcpy(dctx->id, sctx->id, sctx->id_len);
+    }
+    dctx->id_len = sctx->id_len;
+    dctx->id_set = sctx->id_set;
+    dctx->md = sctx->md;
+
+    return 1;
+}
+
+static int pkey_sm2_sign(EVP_PKEY_CTX *ctx, unsigned char *sig, size_t *siglen,
+                         const unsigned char *tbs, size_t tbslen)
+{
+    int ret;
+    unsigned int sltmp;
+    EC_KEY *ec = ctx->pkey->pkey.ec;
+    const int sig_sz = ECDSA_size(ctx->pkey->pkey.ec);
+
+    if (sig_sz <= 0) {
+        return 0;
+    }
+
+    if (sig == NULL) {
+        *siglen = (size_t)sig_sz;
+        return 1;
+    }
+
+    if (*siglen < (size_t)sig_sz) {
+        SM2err(SM2_F_PKEY_SM2_SIGN, SM2_R_BUFFER_TOO_SMALL);
+        return 0;
+    }
+
+    ret = sm2_sign(tbs, tbslen, sig, &sltmp, ec);
+
+    if (ret <= 0)
+        return ret;
+    *siglen = (size_t)sltmp;
+    return 1;
+}
+
+static int pkey_sm2_verify(EVP_PKEY_CTX *ctx,
+                           const unsigned char *sig, size_t siglen,
+                           const unsigned char *tbs, size_t tbslen)
+{
+    EC_KEY *ec = ctx->pkey->pkey.ec;
+
+    return sm2_verify(tbs, tbslen, sig, siglen, ec);
+}
+
+static int pkey_sm2_encrypt(EVP_PKEY_CTX *ctx,
+                            unsigned char *out, size_t *outlen,
+                            const unsigned char *in, size_t inlen)
+{
+    EC_KEY *ec = ctx->pkey->pkey.ec;
+    SM2_PKEY_CTX *dctx = ctx->data;
+    const EVP_MD *md = (dctx->md == NULL) ? EVP_sm3() : dctx->md;
+
+    if (out == NULL) {
+        if (!sm2_ciphertext_size(ec, md, inlen, outlen))
+            return -1;
+        else
+            return 1;
+    }
+
+    return sm2_encrypt(ec, md, in, inlen, out, outlen);
+}
+
+static int pkey_sm2_decrypt(EVP_PKEY_CTX *ctx,
+                            unsigned char *out, size_t *outlen,
+                            const unsigned char *in, size_t inlen)
+{
+    EC_KEY *ec = ctx->pkey->pkey.ec;
+    SM2_PKEY_CTX *dctx = ctx->data;
+    const EVP_MD *md = (dctx->md == NULL) ? EVP_sm3() : dctx->md;
+
+    if (out == NULL) {
+        if (!sm2_plaintext_size(ec, md, inlen, outlen))
+            return -1;
+        else
+            return 1;
+    }
+
+    return sm2_decrypt(ec, md, in, inlen, out, outlen);
+}
+
+static int pkey_sm2_ctrl(EVP_PKEY_CTX *ctx, int type, int p1, void *p2)
+{
+    SM2_PKEY_CTX *smctx = ctx->data;
+    EC_GROUP *group;
+    uint8_t *tmp_id;
+
+    switch (type) {
+    case EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID:
+        group = EC_GROUP_new_by_curve_name(p1);
+        if (group == NULL) {
+            SM2err(SM2_F_PKEY_SM2_CTRL, SM2_R_INVALID_CURVE);
+            return 0;
+        }
+        EC_GROUP_free(smctx->gen_group);
+        smctx->gen_group = group;
+        return 1;
+
+    case EVP_PKEY_CTRL_EC_PARAM_ENC:
+        if (smctx->gen_group == NULL) {
+            SM2err(SM2_F_PKEY_SM2_CTRL, SM2_R_NO_PARAMETERS_SET);
+            return 0;
+        }
+        EC_GROUP_set_asn1_flag(smctx->gen_group, p1);
+        return 1;
+
+    case EVP_PKEY_CTRL_MD:
+        smctx->md = p2;
+        return 1;
+
+    case EVP_PKEY_CTRL_GET_MD:
+        *(const EVP_MD **)p2 = smctx->md;
+        return 1;
+
+    case EVP_PKEY_CTRL_SET1_ID:
+        if (p1 > 0) {
+            tmp_id = OPENSSL_malloc(p1);
+            if (tmp_id == NULL) {
+                SM2err(SM2_F_PKEY_SM2_CTRL, ERR_R_MALLOC_FAILURE);
+                return 0;
+            }
+            memcpy(tmp_id, p2, p1);
+            OPENSSL_free(smctx->id);
+            smctx->id = tmp_id;
+        } else {
+            /* set null-ID */
+            OPENSSL_free(smctx->id);
+            smctx->id = NULL;
+        }
+        smctx->id_len = (size_t)p1;
+        smctx->id_set = 1;
+        return 1;
+
+    case EVP_PKEY_CTRL_GET1_ID:
+        memcpy(p2, smctx->id, smctx->id_len);
+        return 1;
+
+    case EVP_PKEY_CTRL_GET1_ID_LEN:
+        *(size_t *)p2 = smctx->id_len;
+        return 1;
+
+    default:
+        return -2;
+    }
+}
+
+static int pkey_sm2_ctrl_str(EVP_PKEY_CTX *ctx,
+                             const char *type, const char *value)
+{
+    if (strcmp(type, "ec_paramgen_curve") == 0) {
+        int nid = NID_undef;
+
+        if (((nid = EC_curve_nist2nid(value)) == NID_undef)
+            && ((nid = OBJ_sn2nid(value)) == NID_undef)
+            && ((nid = OBJ_ln2nid(value)) == NID_undef)) {
+            SM2err(SM2_F_PKEY_SM2_CTRL_STR, SM2_R_INVALID_CURVE);
+            return 0;
+        }
+        return EVP_PKEY_CTX_set_ec_paramgen_curve_nid(ctx, nid);
+    } else if (strcmp(type, "ec_param_enc") == 0) {
+        int param_enc;
+
+        if (strcmp(value, "explicit") == 0)
+            param_enc = 0;
+        else if (strcmp(value, "named_curve") == 0)
+            param_enc = OPENSSL_EC_NAMED_CURVE;
+        else
+            return -2;
+        return EVP_PKEY_CTX_set_ec_param_enc(ctx, param_enc);
+    }
+
+    return -2;
+}
+
+static int pkey_sm2_digest_custom(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx)
+{
+    uint8_t z[EVP_MAX_MD_SIZE];
+    SM2_PKEY_CTX *smctx = ctx->data;
+    EC_KEY *ec = ctx->pkey->pkey.ec;
+    const EVP_MD *md = EVP_MD_CTX_md(mctx);
+    int mdlen = EVP_MD_size(md);
+
+    if (!smctx->id_set) {
+        /*
+         * An ID value must be set. The specifications are not clear whether a
+         * NULL is allowed. We only allow it if set explicitly for maximum
+         * flexibility.
+         */
+        SM2err(SM2_F_PKEY_SM2_DIGEST_CUSTOM, SM2_R_ID_NOT_SET);
+        return 0;
+    }
+
+    if (mdlen < 0) {
+        SM2err(SM2_F_PKEY_SM2_DIGEST_CUSTOM, SM2_R_INVALID_DIGEST);
+        return 0;
+    }
+
+    /* get hashed prefix 'z' of tbs message */
+    if (!sm2_compute_z_digest(z, md, smctx->id, smctx->id_len, ec))
+        return 0;
+
+    return EVP_DigestUpdate(mctx, z, (size_t)mdlen);
+}
+
+const EVP_PKEY_METHOD sm2_pkey_meth = {
+    EVP_PKEY_SM2,
+    0,
+    pkey_sm2_init,
+    pkey_sm2_copy,
+    pkey_sm2_cleanup,
+
+    0,
+    0,
+
+    0,
+    0,
+
+    0,
+    pkey_sm2_sign,
+
+    0,
+    pkey_sm2_verify,
+
+    0, 0,
+
+    0, 0, 0, 0,
+
+    0,
+    pkey_sm2_encrypt,
+
+    0,
+    pkey_sm2_decrypt,
+
+    0,
+    0,
+    pkey_sm2_ctrl,
+    pkey_sm2_ctrl_str,
+
+    0, 0,
+
+    0, 0, 0,
+
+    pkey_sm2_digest_custom
+};