early-access version 1255

2020-12-28 15:15:37 +00:00
parent 84b39492d1
commit 78b48028e1
6254 changed files with 1868140 additions and 0 deletions
--- a/externals/libressl/crypto/dsa/dsa_asn1.c
+++ b/externals/libressl/crypto/dsa/dsa_asn1.c
@@ -0,0 +1,480 @@
+/* $OpenBSD: dsa_asn1.c,v 1.22 2018/06/14 17:03:19 jsing Exp $ */
+/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
+ * project 2000.
+ */
+/* ====================================================================
+ * Copyright (c) 2000-2005 The OpenSSL Project.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer. 
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ *    software must display the following acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ *    endorse or promote products derived from this software without
+ *    prior written permission. For written permission, please contact
+ *    licensing@OpenSSL.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ *    nor may "OpenSSL" appear in their names without prior written
+ *    permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ *    acknowledgment:
+ *    "This product includes software developed by the OpenSSL Project
+ *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com).  This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+
+#include <stdio.h>
+#include <string.h>
+
+#include <openssl/asn1.h>
+#include <openssl/asn1t.h>
+#include <openssl/dsa.h>
+#include <openssl/err.h>
+
+/* Override the default new methods */
+static int
+sig_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, void *exarg)
+{
+	if (operation == ASN1_OP_NEW_PRE) {
+		DSA_SIG *sig;
+
+		if ((sig = DSA_SIG_new()) == NULL) {
+			DSAerror(ERR_R_MALLOC_FAILURE);
+			return 0;
+		}
+		*pval = (ASN1_VALUE *)sig;
+		return 2;
+	}
+	return 1;
+}
+
+static const ASN1_AUX DSA_SIG_aux = {
+	.app_data = NULL,
+	.flags = 0,
+	.ref_offset = 0,
+	.ref_lock = 0,
+	.asn1_cb = sig_cb,
+	.enc_offset = 0,
+};
+static const ASN1_TEMPLATE DSA_SIG_seq_tt[] = {
+	{
+		.flags = 0,
+		.tag = 0,
+		.offset = offsetof(DSA_SIG, r),
+		.field_name = "r",
+		.item = &CBIGNUM_it,
+	},
+	{
+		.flags = 0,
+		.tag = 0,
+		.offset = offsetof(DSA_SIG, s),
+		.field_name = "s",
+		.item = &CBIGNUM_it,
+	},
+};
+
+const ASN1_ITEM DSA_SIG_it = {
+	.itype = ASN1_ITYPE_SEQUENCE,
+	.utype = V_ASN1_SEQUENCE,
+	.templates = DSA_SIG_seq_tt,
+	.tcount = sizeof(DSA_SIG_seq_tt) / sizeof(ASN1_TEMPLATE),
+	.funcs = &DSA_SIG_aux,
+	.size = sizeof(DSA_SIG),
+	.sname = "DSA_SIG",
+};
+
+
+DSA_SIG *
+d2i_DSA_SIG(DSA_SIG **a, const unsigned char **in, long len)
+{
+	return (DSA_SIG *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
+	    &DSA_SIG_it);
+}
+
+int
+i2d_DSA_SIG(const DSA_SIG *a, unsigned char **out)
+{
+	return ASN1_item_i2d((ASN1_VALUE *)a, out, &DSA_SIG_it);
+}
+
+void
+DSA_SIG_get0(const DSA_SIG *sig, const BIGNUM **pr, const BIGNUM **ps)
+{
+	if (pr != NULL)
+		*pr = sig->r;
+	if (ps != NULL)
+		*ps = sig->s;
+}
+
+int
+DSA_SIG_set0(DSA_SIG *sig, BIGNUM *r, BIGNUM *s)
+{
+	if (r == NULL || s == NULL)
+		return 0;
+
+	BN_clear_free(sig->r);
+	sig->r = r;
+	BN_clear_free(sig->s);
+	sig->s = s;
+
+	return 1;
+}
+
+/* Override the default free and new methods */
+static int
+dsa_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, void *exarg)
+{
+	if (operation == ASN1_OP_NEW_PRE) {
+		*pval = (ASN1_VALUE *)DSA_new();
+		if (*pval)
+			return 2;
+		return 0;
+	} else if (operation == ASN1_OP_FREE_PRE) {
+		DSA_free((DSA *)*pval);
+		*pval = NULL;
+		return 2;
+	}
+	return 1;
+}
+
+static const ASN1_AUX DSAPrivateKey_aux = {
+	.app_data = NULL,
+	.flags = 0,
+	.ref_offset = 0,
+	.ref_lock = 0,
+	.asn1_cb = dsa_cb,
+	.enc_offset = 0,
+};
+static const ASN1_TEMPLATE DSAPrivateKey_seq_tt[] = {
+	{
+		.flags = 0,
+		.tag = 0,
+		.offset = offsetof(DSA, version),
+		.field_name = "version",
+		.item = &LONG_it,
+	},
+	{
+		.flags = 0,
+		.tag = 0,
+		.offset = offsetof(DSA, p),
+		.field_name = "p",
+		.item = &BIGNUM_it,
+	},
+	{
+		.flags = 0,
+		.tag = 0,
+		.offset = offsetof(DSA, q),
+		.field_name = "q",
+		.item = &BIGNUM_it,
+	},
+	{
+		.flags = 0,
+		.tag = 0,
+		.offset = offsetof(DSA, g),
+		.field_name = "g",
+		.item = &BIGNUM_it,
+	},
+	{
+		.flags = 0,
+		.tag = 0,
+		.offset = offsetof(DSA, pub_key),
+		.field_name = "pub_key",
+		.item = &BIGNUM_it,
+	},
+	{
+		.flags = 0,
+		.tag = 0,
+		.offset = offsetof(DSA, priv_key),
+		.field_name = "priv_key",
+		.item = &BIGNUM_it,
+	},
+};
+
+const ASN1_ITEM DSAPrivateKey_it = {
+	.itype = ASN1_ITYPE_SEQUENCE,
+	.utype = V_ASN1_SEQUENCE,
+	.templates = DSAPrivateKey_seq_tt,
+	.tcount = sizeof(DSAPrivateKey_seq_tt) / sizeof(ASN1_TEMPLATE),
+	.funcs = &DSAPrivateKey_aux,
+	.size = sizeof(DSA),
+	.sname = "DSA",
+};
+
+
+DSA *
+d2i_DSAPrivateKey(DSA **a, const unsigned char **in, long len)
+{
+	return (DSA *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
+	    &DSAPrivateKey_it);
+}
+
+int
+i2d_DSAPrivateKey(const DSA *a, unsigned char **out)
+{
+	return ASN1_item_i2d((ASN1_VALUE *)a, out, &DSAPrivateKey_it);
+}
+
+static const ASN1_AUX DSAparams_aux = {
+	.app_data = NULL,
+	.flags = 0,
+	.ref_offset = 0,
+	.ref_lock = 0,
+	.asn1_cb = dsa_cb,
+	.enc_offset = 0,
+};
+static const ASN1_TEMPLATE DSAparams_seq_tt[] = {
+	{
+		.flags = 0,
+		.tag = 0,
+		.offset = offsetof(DSA, p),
+		.field_name = "p",
+		.item = &BIGNUM_it,
+	},
+	{
+		.flags = 0,
+		.tag = 0,
+		.offset = offsetof(DSA, q),
+		.field_name = "q",
+		.item = &BIGNUM_it,
+	},
+	{
+		.flags = 0,
+		.tag = 0,
+		.offset = offsetof(DSA, g),
+		.field_name = "g",
+		.item = &BIGNUM_it,
+	},
+};
+
+const ASN1_ITEM DSAparams_it = {
+	.itype = ASN1_ITYPE_SEQUENCE,
+	.utype = V_ASN1_SEQUENCE,
+	.templates = DSAparams_seq_tt,
+	.tcount = sizeof(DSAparams_seq_tt) / sizeof(ASN1_TEMPLATE),
+	.funcs = &DSAparams_aux,
+	.size = sizeof(DSA),
+	.sname = "DSA",
+};
+
+
+DSA *
+d2i_DSAparams(DSA **a, const unsigned char **in, long len)
+{
+	return (DSA *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
+	    &DSAparams_it);
+}
+
+int
+i2d_DSAparams(const DSA *a, unsigned char **out)
+{
+	return ASN1_item_i2d((ASN1_VALUE *)a, out, &DSAparams_it);
+}
+
+DSA *
+d2i_DSAparams_bio(BIO *bp, DSA **a)
+{
+	return ASN1_item_d2i_bio(&DSAparams_it, bp, a);
+}
+
+int
+i2d_DSAparams_bio(BIO *bp, DSA *a)
+{
+	return ASN1_item_i2d_bio(&DSAparams_it, bp, a);
+}
+
+DSA *
+d2i_DSAparams_fp(FILE *fp, DSA **a)
+{
+	return ASN1_item_d2i_fp(&DSAparams_it, fp, a);
+}
+
+int
+i2d_DSAparams_fp(FILE *fp, DSA *a)
+{
+	return ASN1_item_i2d_fp(&DSAparams_it, fp, a);
+}
+
+/*
+ * DSA public key is a bit trickier... its effectively a CHOICE type
+ * decided by a field called write_params which can either write out
+ * just the public key as an INTEGER or the parameters and public key
+ * in a SEQUENCE
+ */
+
+static const ASN1_TEMPLATE dsa_pub_internal_seq_tt[] = {
+	{
+		.flags = 0,
+		.tag = 0,
+		.offset = offsetof(DSA, pub_key),
+		.field_name = "pub_key",
+		.item = &BIGNUM_it,
+	},
+	{
+		.flags = 0,
+		.tag = 0,
+		.offset = offsetof(DSA, p),
+		.field_name = "p",
+		.item = &BIGNUM_it,
+	},
+	{
+		.flags = 0,
+		.tag = 0,
+		.offset = offsetof(DSA, q),
+		.field_name = "q",
+		.item = &BIGNUM_it,
+	},
+	{
+		.flags = 0,
+		.tag = 0,
+		.offset = offsetof(DSA, g),
+		.field_name = "g",
+		.item = &BIGNUM_it,
+	},
+};
+
+const ASN1_ITEM dsa_pub_internal_it = {
+	.itype = ASN1_ITYPE_SEQUENCE,
+	.utype = V_ASN1_SEQUENCE,
+	.templates = dsa_pub_internal_seq_tt,
+	.tcount = sizeof(dsa_pub_internal_seq_tt) / sizeof(ASN1_TEMPLATE),
+	.funcs = NULL,
+	.size = sizeof(DSA),
+	.sname = "DSA",
+};
+
+static const ASN1_AUX DSAPublicKey_aux = {
+	.app_data = NULL,
+	.flags = 0,
+	.ref_offset = 0,
+	.ref_lock = 0,
+	.asn1_cb = dsa_cb,
+	.enc_offset = 0,
+};
+static const ASN1_TEMPLATE DSAPublicKey_ch_tt[] = {
+	{
+		.flags = 0,
+		.tag = 0,
+		.offset = offsetof(DSA, pub_key),
+		.field_name = "pub_key",
+		.item = &BIGNUM_it,
+	},
+	{
+		.flags = 0 | ASN1_TFLG_COMBINE,
+		.tag = 0,
+		.offset = 0,
+		.field_name = NULL,
+		.item = &dsa_pub_internal_it,
+	},
+};
+
+const ASN1_ITEM DSAPublicKey_it = {
+	.itype = ASN1_ITYPE_CHOICE,
+	.utype = offsetof(DSA, write_params),
+	.templates = DSAPublicKey_ch_tt,
+	.tcount = sizeof(DSAPublicKey_ch_tt) / sizeof(ASN1_TEMPLATE),
+	.funcs = &DSAPublicKey_aux,
+	.size = sizeof(DSA),
+	.sname = "DSA",
+};
+
+
+DSA *
+d2i_DSAPublicKey(DSA **a, const unsigned char **in, long len)
+{
+	return (DSA *)ASN1_item_d2i((ASN1_VALUE **)a, in, len,
+	    &DSAPublicKey_it);
+}
+
+int
+i2d_DSAPublicKey(const DSA *a, unsigned char **out)
+{
+	return ASN1_item_i2d((ASN1_VALUE *)a, out, &DSAPublicKey_it);
+}
+
+DSA *
+DSAparams_dup(DSA *dsa)
+{
+	return ASN1_item_dup(&DSAparams_it, dsa);
+}
+
+int
+DSA_sign(int type, const unsigned char *dgst, int dlen, unsigned char *sig,
+    unsigned int *siglen, DSA *dsa)
+{
+	DSA_SIG *s;
+
+	s = DSA_do_sign(dgst, dlen, dsa);
+	if (s == NULL) {
+		*siglen = 0;
+		return 0;
+	}
+	*siglen = i2d_DSA_SIG(s,&sig);
+	DSA_SIG_free(s);
+	return 1;
+}
+
+/*
+ * data has already been hashed (probably with SHA or SHA-1).
+ * returns
+ *      1: correct signature
+ *      0: incorrect signature
+ *     -1: error
+ */
+int
+DSA_verify(int type, const unsigned char *dgst, int dgst_len,
+    const unsigned char *sigbuf, int siglen, DSA *dsa)
+{
+	DSA_SIG *s;
+	unsigned char *der = NULL;
+	const unsigned char *p = sigbuf;
+	int derlen = -1;
+	int ret = -1;
+
+	s = DSA_SIG_new();
+	if (s == NULL)
+		return ret;
+	if (d2i_DSA_SIG(&s, &p, siglen) == NULL)
+		goto err;
+	/* Ensure signature uses DER and doesn't have trailing garbage */
+	derlen = i2d_DSA_SIG(s, &der);
+	if (derlen != siglen || memcmp(sigbuf, der, derlen))
+		goto err;
+	ret = DSA_do_verify(dgst, dgst_len, s, dsa);
+err:
+	freezero(der, derlen);
+	DSA_SIG_free(s);
+	return ret;
+}