initial/final commitHEADmaster

1 files changed, 572 insertions, 0 deletions

diff --git a/openssl-1.1.0h/crypto/dsa/dsa_ameth.c b/openssl-1.1.0h/crypto/dsa/dsa_ameth.c
new file mode 100644
index 0000000..d4e4066
--- /dev/null
+++ b/openssl-1.1.0h/crypto/dsa/dsa_ameth.c
@@ -0,0 +1,572 @@
+/*
+ * 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 "internal/cryptlib.h"
+#include <openssl/x509.h>
+#include <openssl/asn1.h>
+#include "dsa_locl.h"
+#include <openssl/bn.h>
+#include <openssl/cms.h>
+#include "internal/asn1_int.h"
+#include "internal/evp_int.h"
+
+static int dsa_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)
+{
+    const unsigned char *p, *pm;
+    int pklen, pmlen;
+    int ptype;
+    const void *pval;
+    const ASN1_STRING *pstr;
+    X509_ALGOR *palg;
+    ASN1_INTEGER *public_key = NULL;
+
+    DSA *dsa = NULL;
+
+    if (!X509_PUBKEY_get0_param(NULL, &p, &pklen, &palg, pubkey))
+        return 0;
+    X509_ALGOR_get0(NULL, &ptype, &pval, palg);
+
+    if (ptype == V_ASN1_SEQUENCE) {
+        pstr = pval;
+        pm = pstr->data;
+        pmlen = pstr->length;
+
+        if ((dsa = d2i_DSAparams(NULL, &pm, pmlen)) == NULL) {
+            DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_DECODE_ERROR);
+            goto err;
+        }
+
+    } else if ((ptype == V_ASN1_NULL) || (ptype == V_ASN1_UNDEF)) {
+        if ((dsa = DSA_new()) == NULL) {
+            DSAerr(DSA_F_DSA_PUB_DECODE, ERR_R_MALLOC_FAILURE);
+            goto err;
+        }
+    } else {
+        DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_PARAMETER_ENCODING_ERROR);
+        goto err;
+    }
+
+    if ((public_key = d2i_ASN1_INTEGER(NULL, &p, pklen)) == NULL) {
+        DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_DECODE_ERROR);
+        goto err;
+    }
+
+    if ((dsa->pub_key = ASN1_INTEGER_to_BN(public_key, NULL)) == NULL) {
+        DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_BN_DECODE_ERROR);
+        goto err;
+    }
+
+    ASN1_INTEGER_free(public_key);
+    EVP_PKEY_assign_DSA(pkey, dsa);
+    return 1;
+
+ err:
+    ASN1_INTEGER_free(public_key);
+    DSA_free(dsa);
+    return 0;
+
+}
+
+static int dsa_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey)
+{
+    DSA *dsa;
+    int ptype;
+    unsigned char *penc = NULL;
+    int penclen;
+    ASN1_STRING *str = NULL;
+    ASN1_INTEGER *pubint = NULL;
+    ASN1_OBJECT *aobj;
+
+    dsa = pkey->pkey.dsa;
+    if (pkey->save_parameters && dsa->p && dsa->q && dsa->g) {
+        str = ASN1_STRING_new();
+        if (str == NULL) {
+            DSAerr(DSA_F_DSA_PUB_ENCODE, ERR_R_MALLOC_FAILURE);
+            goto err;
+        }
+        str->length = i2d_DSAparams(dsa, &str->data);
+        if (str->length <= 0) {
+            DSAerr(DSA_F_DSA_PUB_ENCODE, ERR_R_MALLOC_FAILURE);
+            goto err;
+        }
+        ptype = V_ASN1_SEQUENCE;
+    } else
+        ptype = V_ASN1_UNDEF;
+
+    pubint = BN_to_ASN1_INTEGER(dsa->pub_key, NULL);
+
+    if (pubint == NULL) {
+        DSAerr(DSA_F_DSA_PUB_ENCODE, ERR_R_MALLOC_FAILURE);
+        goto err;
+    }
+
+    penclen = i2d_ASN1_INTEGER(pubint, &penc);
+    ASN1_INTEGER_free(pubint);
+
+    if (penclen <= 0) {
+        DSAerr(DSA_F_DSA_PUB_ENCODE, ERR_R_MALLOC_FAILURE);
+        goto err;
+    }
+
+    aobj = OBJ_nid2obj(EVP_PKEY_DSA);
+    if (aobj == NULL)
+        goto err;
+
+    if (X509_PUBKEY_set0_param(pk, aobj, ptype, str, penc, penclen))
+        return 1;
+
+ err:
+    OPENSSL_free(penc);
+    ASN1_STRING_free(str);
+
+    return 0;
+}
+
+/*
+ * In PKCS#8 DSA: you just get a private key integer and parameters in the
+ * AlgorithmIdentifier the pubkey must be recalculated.
+ */
+
+static int dsa_priv_decode(EVP_PKEY *pkey, const PKCS8_PRIV_KEY_INFO *p8)
+{
+    const unsigned char *p, *pm;
+    int pklen, pmlen;
+    int ptype;
+    const void *pval;
+    const ASN1_STRING *pstr;
+    const X509_ALGOR *palg;
+    ASN1_INTEGER *privkey = NULL;
+    BN_CTX *ctx = NULL;
+
+    DSA *dsa = NULL;
+
+    int ret = 0;
+
+    if (!PKCS8_pkey_get0(NULL, &p, &pklen, &palg, p8))
+        return 0;
+    X509_ALGOR_get0(NULL, &ptype, &pval, palg);
+
+    if ((privkey = d2i_ASN1_INTEGER(NULL, &p, pklen)) == NULL)
+        goto decerr;
+    if (privkey->type == V_ASN1_NEG_INTEGER || ptype != V_ASN1_SEQUENCE)
+        goto decerr;
+
+    pstr = pval;
+    pm = pstr->data;
+    pmlen = pstr->length;
+    if ((dsa = d2i_DSAparams(NULL, &pm, pmlen)) == NULL)
+        goto decerr;
+    /* We have parameters now set private key */
+    if ((dsa->priv_key = BN_secure_new()) == NULL
+        || !ASN1_INTEGER_to_BN(privkey, dsa->priv_key)) {
+        DSAerr(DSA_F_DSA_PRIV_DECODE, DSA_R_BN_ERROR);
+        goto dsaerr;
+    }
+    /* Calculate public key */
+    if ((dsa->pub_key = BN_new()) == NULL) {
+        DSAerr(DSA_F_DSA_PRIV_DECODE, ERR_R_MALLOC_FAILURE);
+        goto dsaerr;
+    }
+    if ((ctx = BN_CTX_new()) == NULL) {
+        DSAerr(DSA_F_DSA_PRIV_DECODE, ERR_R_MALLOC_FAILURE);
+        goto dsaerr;
+    }
+
+    BN_set_flags(dsa->priv_key, BN_FLG_CONSTTIME);
+    if (!BN_mod_exp(dsa->pub_key, dsa->g, dsa->priv_key, dsa->p, ctx)) {
+        DSAerr(DSA_F_DSA_PRIV_DECODE, DSA_R_BN_ERROR);
+        goto dsaerr;
+    }
+
+    EVP_PKEY_assign_DSA(pkey, dsa);
+
+    ret = 1;
+    goto done;
+
+ decerr:
+    DSAerr(DSA_F_DSA_PRIV_DECODE, DSA_R_DECODE_ERROR);
+ dsaerr:
+    DSA_free(dsa);
+ done:
+    BN_CTX_free(ctx);
+    ASN1_STRING_clear_free(privkey);
+    return ret;
+}
+
+static int dsa_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey)
+{
+    ASN1_STRING *params = NULL;
+    ASN1_INTEGER *prkey = NULL;
+    unsigned char *dp = NULL;
+    int dplen;
+
+    if (!pkey->pkey.dsa || !pkey->pkey.dsa->priv_key) {
+        DSAerr(DSA_F_DSA_PRIV_ENCODE, DSA_R_MISSING_PARAMETERS);
+        goto err;
+    }
+
+    params = ASN1_STRING_new();
+
+    if (params == NULL) {
+        DSAerr(DSA_F_DSA_PRIV_ENCODE, ERR_R_MALLOC_FAILURE);
+        goto err;
+    }
+
+    params->length = i2d_DSAparams(pkey->pkey.dsa, &params->data);
+    if (params->length <= 0) {
+        DSAerr(DSA_F_DSA_PRIV_ENCODE, ERR_R_MALLOC_FAILURE);
+        goto err;
+    }
+    params->type = V_ASN1_SEQUENCE;
+
+    /* Get private key into integer */
+    prkey = BN_to_ASN1_INTEGER(pkey->pkey.dsa->priv_key, NULL);
+
+    if (!prkey) {
+        DSAerr(DSA_F_DSA_PRIV_ENCODE, DSA_R_BN_ERROR);
+        goto err;
+    }
+
+    dplen = i2d_ASN1_INTEGER(prkey, &dp);
+
+    ASN1_STRING_clear_free(prkey);
+    prkey = NULL;
+
+    if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(NID_dsa), 0,
+                         V_ASN1_SEQUENCE, params, dp, dplen))
+        goto err;
+
+    return 1;
+
+ err:
+    OPENSSL_free(dp);
+    ASN1_STRING_free(params);
+    ASN1_STRING_clear_free(prkey);
+    return 0;
+}
+
+static int int_dsa_size(const EVP_PKEY *pkey)
+{
+    return (DSA_size(pkey->pkey.dsa));
+}
+
+static int dsa_bits(const EVP_PKEY *pkey)
+{
+    return DSA_bits(pkey->pkey.dsa);
+}
+
+static int dsa_security_bits(const EVP_PKEY *pkey)
+{
+    return DSA_security_bits(pkey->pkey.dsa);
+}
+
+static int dsa_missing_parameters(const EVP_PKEY *pkey)
+{
+    DSA *dsa;
+    dsa = pkey->pkey.dsa;
+    if (dsa == NULL || dsa->p == NULL || dsa->q == NULL || dsa->g == NULL)
+        return 1;
+    return 0;
+}
+
+static int dsa_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from)
+{
+    BIGNUM *a;
+
+    if (to->pkey.dsa == NULL) {
+        to->pkey.dsa = DSA_new();
+        if (to->pkey.dsa == NULL)
+            return 0;
+    }
+
+    if ((a = BN_dup(from->pkey.dsa->p)) == NULL)
+        return 0;
+    BN_free(to->pkey.dsa->p);
+    to->pkey.dsa->p = a;
+
+    if ((a = BN_dup(from->pkey.dsa->q)) == NULL)
+        return 0;
+    BN_free(to->pkey.dsa->q);
+    to->pkey.dsa->q = a;
+
+    if ((a = BN_dup(from->pkey.dsa->g)) == NULL)
+        return 0;
+    BN_free(to->pkey.dsa->g);
+    to->pkey.dsa->g = a;
+    return 1;
+}
+
+static int dsa_cmp_parameters(const EVP_PKEY *a, const EVP_PKEY *b)
+{
+    if (BN_cmp(a->pkey.dsa->p, b->pkey.dsa->p) ||
+        BN_cmp(a->pkey.dsa->q, b->pkey.dsa->q) ||
+        BN_cmp(a->pkey.dsa->g, b->pkey.dsa->g))
+        return 0;
+    else
+        return 1;
+}
+
+static int dsa_pub_cmp(const EVP_PKEY *a, const EVP_PKEY *b)
+{
+    if (BN_cmp(b->pkey.dsa->pub_key, a->pkey.dsa->pub_key) != 0)
+        return 0;
+    else
+        return 1;
+}
+
+static void int_dsa_free(EVP_PKEY *pkey)
+{
+    DSA_free(pkey->pkey.dsa);
+}
+
+static int do_dsa_print(BIO *bp, const DSA *x, int off, int ptype)
+{
+    int ret = 0;
+    const char *ktype = NULL;
+    const BIGNUM *priv_key, *pub_key;
+
+    if (ptype == 2)
+        priv_key = x->priv_key;
+    else
+        priv_key = NULL;
+
+    if (ptype > 0)
+        pub_key = x->pub_key;
+    else
+        pub_key = NULL;
+
+    if (ptype == 2)
+        ktype = "Private-Key";
+    else if (ptype == 1)
+        ktype = "Public-Key";
+    else
+        ktype = "DSA-Parameters";
+
+    if (priv_key) {
+        if (!BIO_indent(bp, off, 128))
+            goto err;
+        if (BIO_printf(bp, "%s: (%d bit)\n", ktype, BN_num_bits(x->p))
+            <= 0)
+            goto err;
+    }
+
+    if (!ASN1_bn_print(bp, "priv:", priv_key, NULL, off))
+        goto err;
+    if (!ASN1_bn_print(bp, "pub: ", pub_key, NULL, off))
+        goto err;
+    if (!ASN1_bn_print(bp, "P:   ", x->p, NULL, off))
+        goto err;
+    if (!ASN1_bn_print(bp, "Q:   ", x->q, NULL, off))
+        goto err;
+    if (!ASN1_bn_print(bp, "G:   ", x->g, NULL, off))
+        goto err;
+    ret = 1;
+ err:
+    return (ret);
+}
+
+static int dsa_param_decode(EVP_PKEY *pkey,
+                            const unsigned char **pder, int derlen)
+{
+    DSA *dsa;
+
+    if ((dsa = d2i_DSAparams(NULL, pder, derlen)) == NULL) {
+        DSAerr(DSA_F_DSA_PARAM_DECODE, ERR_R_DSA_LIB);
+        return 0;
+    }
+    EVP_PKEY_assign_DSA(pkey, dsa);
+    return 1;
+}
+
+static int dsa_param_encode(const EVP_PKEY *pkey, unsigned char **pder)
+{
+    return i2d_DSAparams(pkey->pkey.dsa, pder);
+}
+
+static int dsa_param_print(BIO *bp, const EVP_PKEY *pkey, int indent,
+                           ASN1_PCTX *ctx)
+{
+    return do_dsa_print(bp, pkey->pkey.dsa, indent, 0);
+}
+
+static int dsa_pub_print(BIO *bp, const EVP_PKEY *pkey, int indent,
+                         ASN1_PCTX *ctx)
+{
+    return do_dsa_print(bp, pkey->pkey.dsa, indent, 1);
+}
+
+static int dsa_priv_print(BIO *bp, const EVP_PKEY *pkey, int indent,
+                          ASN1_PCTX *ctx)
+{
+    return do_dsa_print(bp, pkey->pkey.dsa, indent, 2);
+}
+
+static int old_dsa_priv_decode(EVP_PKEY *pkey,
+                               const unsigned char **pder, int derlen)
+{
+    DSA *dsa;
+
+    if ((dsa = d2i_DSAPrivateKey(NULL, pder, derlen)) == NULL) {
+        DSAerr(DSA_F_OLD_DSA_PRIV_DECODE, ERR_R_DSA_LIB);
+        return 0;
+    }
+    EVP_PKEY_assign_DSA(pkey, dsa);
+    return 1;
+}
+
+static int old_dsa_priv_encode(const EVP_PKEY *pkey, unsigned char **pder)
+{
+    return i2d_DSAPrivateKey(pkey->pkey.dsa, pder);
+}
+
+static int dsa_sig_print(BIO *bp, const X509_ALGOR *sigalg,
+                         const ASN1_STRING *sig, int indent, ASN1_PCTX *pctx)
+{
+    DSA_SIG *dsa_sig;
+    const unsigned char *p;
+
+    if (!sig) {
+        if (BIO_puts(bp, "\n") <= 0)
+            return 0;
+        else
+            return 1;
+    }
+    p = sig->data;
+    dsa_sig = d2i_DSA_SIG(NULL, &p, sig->length);
+    if (dsa_sig) {
+        int rv = 0;
+        const BIGNUM *r, *s;
+
+        DSA_SIG_get0(dsa_sig, &r, &s);
+
+        if (BIO_write(bp, "\n", 1) != 1)
+            goto err;
+
+        if (!ASN1_bn_print(bp, "r:   ", r, NULL, indent))
+            goto err;
+        if (!ASN1_bn_print(bp, "s:   ", s, NULL, indent))
+            goto err;
+        rv = 1;
+ err:
+        DSA_SIG_free(dsa_sig);
+        return rv;
+    }
+    return X509_signature_dump(bp, sig, indent);
+}
+
+static int dsa_pkey_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2)
+{
+    switch (op) {
+    case ASN1_PKEY_CTRL_PKCS7_SIGN:
+        if (arg1 == 0) {
+            int snid, hnid;
+            X509_ALGOR *alg1, *alg2;
+            PKCS7_SIGNER_INFO_get0_algs(arg2, NULL, &alg1, &alg2);
+            if (alg1 == NULL || alg1->algorithm == NULL)
+                return -1;
+            hnid = OBJ_obj2nid(alg1->algorithm);
+            if (hnid == NID_undef)
+                return -1;
+            if (!OBJ_find_sigid_by_algs(&snid, hnid, EVP_PKEY_id(pkey)))
+                return -1;
+            X509_ALGOR_set0(alg2, OBJ_nid2obj(snid), V_ASN1_UNDEF, 0);
+        }
+        return 1;
+#ifndef OPENSSL_NO_CMS
+    case ASN1_PKEY_CTRL_CMS_SIGN:
+        if (arg1 == 0) {
+            int snid, hnid;
+            X509_ALGOR *alg1, *alg2;
+            CMS_SignerInfo_get0_algs(arg2, NULL, NULL, &alg1, &alg2);
+            if (alg1 == NULL || alg1->algorithm == NULL)
+                return -1;
+            hnid = OBJ_obj2nid(alg1->algorithm);
+            if (hnid == NID_undef)
+                return -1;
+            if (!OBJ_find_sigid_by_algs(&snid, hnid, EVP_PKEY_id(pkey)))
+                return -1;
+            X509_ALGOR_set0(alg2, OBJ_nid2obj(snid), V_ASN1_UNDEF, 0);
+        }
+        return 1;
+
+    case ASN1_PKEY_CTRL_CMS_RI_TYPE:
+        *(int *)arg2 = CMS_RECIPINFO_NONE;
+        return 1;
+#endif
+
+    case ASN1_PKEY_CTRL_DEFAULT_MD_NID:
+        *(int *)arg2 = NID_sha256;
+        return 2;
+
+    default:
+        return -2;
+
+    }
+
+}
+
+/* NB these are sorted in pkey_id order, lowest first */
+
+const EVP_PKEY_ASN1_METHOD dsa_asn1_meths[5] = {
+
+    {
+     EVP_PKEY_DSA2,
+     EVP_PKEY_DSA,
+     ASN1_PKEY_ALIAS},
+
+    {
+     EVP_PKEY_DSA1,
+     EVP_PKEY_DSA,
+     ASN1_PKEY_ALIAS},
+
+    {
+     EVP_PKEY_DSA4,
+     EVP_PKEY_DSA,
+     ASN1_PKEY_ALIAS},
+
+    {
+     EVP_PKEY_DSA3,
+     EVP_PKEY_DSA,
+     ASN1_PKEY_ALIAS},
+
+    {
+     EVP_PKEY_DSA,
+     EVP_PKEY_DSA,
+     0,
+
+     "DSA",
+     "OpenSSL DSA method",
+
+     dsa_pub_decode,
+     dsa_pub_encode,
+     dsa_pub_cmp,
+     dsa_pub_print,
+
+     dsa_priv_decode,
+     dsa_priv_encode,
+     dsa_priv_print,
+
+     int_dsa_size,
+     dsa_bits,
+     dsa_security_bits,
+
+     dsa_param_decode,
+     dsa_param_encode,
+     dsa_missing_parameters,
+     dsa_copy_parameters,
+     dsa_cmp_parameters,
+     dsa_param_print,
+     dsa_sig_print,
+
+     int_dsa_free,
+     dsa_pkey_ctrl,
+     old_dsa_priv_decode,
+     old_dsa_priv_encode}
+};