1 files changed, 239 insertions, 240 deletions

diff --git a/openssl/engines/ccgost/gost_sign.c b/openssl/engines/ccgost/gost_sign.c
index 409565435..0116e4740 100644
--- a/openssl/engines/ccgost/gost_sign.c
+++ b/openssl/engines/ccgost/gost_sign.c
@@ -18,114 +18,114 @@
 #include "e_gost_err.h"
 
 #ifdef DEBUG_SIGN
-void dump_signature(const char *message,const unsigned char *buffer,size_t len)
-	{
-	size_t i;
-	fprintf(stderr,"signature %s Length=%d",message,len);
-	for (i=0; i<len; i++)
-		{
-		if (i% 16 ==0) fputc('\n',stderr);
-		fprintf (stderr," %02x",buffer[i]);
-		}
-	fprintf(stderr,"\nEnd of signature\n");
-	}
+void dump_signature(const char *message, const unsigned char *buffer,
+                    size_t len)
+{
+    size_t i;
+    fprintf(stderr, "signature %s Length=%d", message, len);
+    for (i = 0; i < len; i++) {
+        if (i % 16 == 0)
+            fputc('\n', stderr);
+        fprintf(stderr, " %02x", buffer[i]);
+    }
+    fprintf(stderr, "\nEnd of signature\n");
+}
 
 void dump_dsa_sig(const char *message, DSA_SIG *sig)
-	{
-	fprintf(stderr,"%s\nR=",message);
-	BN_print_fp(stderr,sig->r);
-	fprintf(stderr,"\nS=");
-	BN_print_fp(stderr,sig->s);
-	fprintf(stderr,"\n");
-	}
+{
+    fprintf(stderr, "%s\nR=", message);
+    BN_print_fp(stderr, sig->r);
+    fprintf(stderr, "\nS=");
+    BN_print_fp(stderr, sig->s);
+    fprintf(stderr, "\n");
+}
 
 #else
 
-#define dump_signature(a,b,c)
-#define dump_dsa_sig(a,b)
+# define dump_signature(a,b,c)
+# define dump_dsa_sig(a,b)
 #endif
 
 /*
  * Computes signature and returns it as DSA_SIG structure
  */
-DSA_SIG *gost_do_sign(const unsigned char *dgst,int dlen, DSA *dsa)
-	{
-	BIGNUM *k=NULL,*tmp=NULL,*tmp2=NULL;
-	DSA_SIG *newsig = DSA_SIG_new();
-	BIGNUM *md = hashsum2bn(dgst);
-	/* check if H(M) mod q is zero */
-	BN_CTX *ctx=BN_CTX_new();
-	BN_CTX_start(ctx);
-	if (!newsig)
-		{
-		GOSTerr(GOST_F_GOST_DO_SIGN,GOST_R_NO_MEMORY);
-		goto err;
-		}	
-	tmp=BN_CTX_get(ctx);
-	k = BN_CTX_get(ctx);
-	tmp2 = BN_CTX_get(ctx);
-	BN_mod(tmp,md,dsa->q,ctx);
-	if (BN_is_zero(tmp))
-		{
-		BN_one(md);
-		}	
-	do
-		{
-		do
-			{
-			/*Generate random number k less than q*/
-			BN_rand_range(k,dsa->q);
-			/* generate r = (a^x mod p) mod q */
-			BN_mod_exp(tmp,dsa->g, k, dsa->p,ctx);
-			if (!(newsig->r)) newsig->r=BN_new();
-			BN_mod(newsig->r,tmp,dsa->q,ctx);
-			}
-		while (BN_is_zero(newsig->r));
-		/* generate s = (xr + k(Hm)) mod q */
-		BN_mod_mul(tmp,dsa->priv_key,newsig->r,dsa->q,ctx);
-		BN_mod_mul(tmp2,k,md,dsa->q,ctx);
-		if (!newsig->s) newsig->s=BN_new();
-		BN_mod_add(newsig->s,tmp,tmp2,dsa->q,ctx);
-		}
-	while (BN_is_zero(newsig->s));		
-	err:
-	BN_free(md);
-	BN_CTX_end(ctx);
-	BN_CTX_free(ctx);
-	return newsig;
-	}	
-
+DSA_SIG *gost_do_sign(const unsigned char *dgst, int dlen, DSA *dsa)
+{
+    BIGNUM *k = NULL, *tmp = NULL, *tmp2 = NULL;
+    DSA_SIG *newsig = DSA_SIG_new();
+    BIGNUM *md = hashsum2bn(dgst);
+    /* check if H(M) mod q is zero */
+    BN_CTX *ctx = BN_CTX_new();
+    BN_CTX_start(ctx);
+    if (!newsig) {
+        GOSTerr(GOST_F_GOST_DO_SIGN, GOST_R_NO_MEMORY);
+        goto err;
+    }
+    tmp = BN_CTX_get(ctx);
+    k = BN_CTX_get(ctx);
+    tmp2 = BN_CTX_get(ctx);
+    BN_mod(tmp, md, dsa->q, ctx);
+    if (BN_is_zero(tmp)) {
+        BN_one(md);
+    }
+    do {
+        do {
+            /*
+             * Generate random number k less than q
+             */
+            BN_rand_range(k, dsa->q);
+            /* generate r = (a^x mod p) mod q */
+            BN_mod_exp(tmp, dsa->g, k, dsa->p, ctx);
+            if (!(newsig->r))
+                newsig->r = BN_new();
+            BN_mod(newsig->r, tmp, dsa->q, ctx);
+        }
+        while (BN_is_zero(newsig->r));
+        /* generate s = (xr + k(Hm)) mod q */
+        BN_mod_mul(tmp, dsa->priv_key, newsig->r, dsa->q, ctx);
+        BN_mod_mul(tmp2, k, md, dsa->q, ctx);
+        if (!newsig->s)
+            newsig->s = BN_new();
+        BN_mod_add(newsig->s, tmp, tmp2, dsa->q, ctx);
+    }
+    while (BN_is_zero(newsig->s));
+ err:
+    BN_free(md);
+    BN_CTX_end(ctx);
+    BN_CTX_free(ctx);
+    return newsig;
+}
 
 /*
  * Packs signature according to Cryptocom rules
  * and frees up DSA_SIG structure
  */
-/*
+/*-
 int pack_sign_cc(DSA_SIG *s,int order,unsigned char *sig, size_t *siglen)
-	{
-	*siglen = 2*order;
-	memset(sig,0,*siglen);
-	store_bignum(s->r, sig,order);
-	store_bignum(s->s, sig + order,order);
-	dump_signature("serialized",sig,*siglen);
-	DSA_SIG_free(s);
-	return 1;
-	}
+        {
+        *siglen = 2*order;
+        memset(sig,0,*siglen);
+        store_bignum(s->r, sig,order);
+        store_bignum(s->s, sig + order,order);
+        dump_signature("serialized",sig,*siglen);
+        DSA_SIG_free(s);
+        return 1;
+        }
 */
 /*
  * Packs signature according to Cryptopro rules
  * and frees up DSA_SIG structure
  */
-int pack_sign_cp(DSA_SIG *s,int order,unsigned char *sig, size_t *siglen)
-	{
-	*siglen = 2*order;
-	memset(sig,0,*siglen);
-	store_bignum(s->s, sig, order);
-	store_bignum(s->r, sig+order,order);
-	dump_signature("serialized",sig,*siglen);
-	DSA_SIG_free(s);
-	return 1;
-	}
+int pack_sign_cp(DSA_SIG *s, int order, unsigned char *sig, size_t *siglen)
+{
+    *siglen = 2 * order;
+    memset(sig, 0, *siglen);
+    store_bignum(s->s, sig, order);
+    store_bignum(s->r, sig + order, order);
+    dump_signature("serialized", sig, *siglen);
+    DSA_SIG_free(s);
+    return 1;
+}
 
 /*
  * Verifies signature passed as DSA_SIG structure
@@ -133,106 +133,107 @@ int pack_sign_cp(DSA_SIG *s,int order,unsigned char *sig, size_t *siglen)
  */
 
 int gost_do_verify(const unsigned char *dgst, int dgst_len,
-	DSA_SIG *sig, DSA *dsa)
-	{
-	BIGNUM *md, *tmp=NULL;
-	BIGNUM *q2=NULL;
-	BIGNUM *u=NULL,*v=NULL,*z1=NULL,*z2=NULL;
-	BIGNUM *tmp2=NULL,*tmp3=NULL;
-	int ok;
-	BN_CTX *ctx = BN_CTX_new();
+                   DSA_SIG *sig, DSA *dsa)
+{
+    BIGNUM *md, *tmp = NULL;
+    BIGNUM *q2 = NULL;
+    BIGNUM *u = NULL, *v = NULL, *z1 = NULL, *z2 = NULL;
+    BIGNUM *tmp2 = NULL, *tmp3 = NULL;
+    int ok;
+    BN_CTX *ctx = BN_CTX_new();
+
+    BN_CTX_start(ctx);
+    if (BN_cmp(sig->s, dsa->q) >= 1 || BN_cmp(sig->r, dsa->q) >= 1) {
+        GOSTerr(GOST_F_GOST_DO_VERIFY, GOST_R_SIGNATURE_PARTS_GREATER_THAN_Q);
+        return 0;
+    }
+    md = hashsum2bn(dgst);
+
+    tmp = BN_CTX_get(ctx);
+    v = BN_CTX_get(ctx);
+    q2 = BN_CTX_get(ctx);
+    z1 = BN_CTX_get(ctx);
+    z2 = BN_CTX_get(ctx);
+    tmp2 = BN_CTX_get(ctx);
+    tmp3 = BN_CTX_get(ctx);
+    u = BN_CTX_get(ctx);
 
-	BN_CTX_start(ctx);
-	if (BN_cmp(sig->s,dsa->q)>=1||
-		BN_cmp(sig->r,dsa->q)>=1)
-		{
-		GOSTerr(GOST_F_GOST_DO_VERIFY,GOST_R_SIGNATURE_PARTS_GREATER_THAN_Q);
-		return 0;
-		}
-	md=hashsum2bn(dgst);
-	
-	tmp=BN_CTX_get(ctx);
-	v=BN_CTX_get(ctx);
-	q2=BN_CTX_get(ctx);
-	z1=BN_CTX_get(ctx);
-	z2=BN_CTX_get(ctx);
-	tmp2=BN_CTX_get(ctx);
-	tmp3=BN_CTX_get(ctx);
-	u = BN_CTX_get(ctx);
-	
-	BN_mod(tmp,md,dsa->q,ctx);
-	if (BN_is_zero(tmp))
-		{
-		BN_one(md);
-		}
-	BN_copy(q2,dsa->q);
-	BN_sub_word(q2,2);
-	BN_mod_exp(v,md,q2,dsa->q,ctx);
-	BN_mod_mul(z1,sig->s,v,dsa->q,ctx);
-	BN_sub(tmp,dsa->q,sig->r);
-	BN_mod_mul(z2,tmp,v,dsa->p,ctx);
-	BN_mod_exp(tmp,dsa->g,z1,dsa->p,ctx);
-	BN_mod_exp(tmp2,dsa->pub_key,z2,dsa->p,ctx);
-	BN_mod_mul(tmp3,tmp,tmp2,dsa->p,ctx);
-	BN_mod(u,tmp3,dsa->q,ctx);
-	ok= BN_cmp(u,sig->r);
-	
-	BN_free(md);
-	BN_CTX_end(ctx);
-	BN_CTX_free(ctx);
-	if (ok!=0)
-		{
-		GOSTerr(GOST_F_GOST_DO_VERIFY,GOST_R_SIGNATURE_MISMATCH);
-		}	
-	return (ok==0);
-	}
+    BN_mod(tmp, md, dsa->q, ctx);
+    if (BN_is_zero(tmp)) {
+        BN_one(md);
+    }
+    BN_copy(q2, dsa->q);
+    BN_sub_word(q2, 2);
+    BN_mod_exp(v, md, q2, dsa->q, ctx);
+    BN_mod_mul(z1, sig->s, v, dsa->q, ctx);
+    BN_sub(tmp, dsa->q, sig->r);
+    BN_mod_mul(z2, tmp, v, dsa->p, ctx);
+    BN_mod_exp(tmp, dsa->g, z1, dsa->p, ctx);
+    BN_mod_exp(tmp2, dsa->pub_key, z2, dsa->p, ctx);
+    BN_mod_mul(tmp3, tmp, tmp2, dsa->p, ctx);
+    BN_mod(u, tmp3, dsa->q, ctx);
+    ok = BN_cmp(u, sig->r);
+
+    BN_free(md);
+    BN_CTX_end(ctx);
+    BN_CTX_free(ctx);
+    if (ok != 0) {
+        GOSTerr(GOST_F_GOST_DO_VERIFY, GOST_R_SIGNATURE_MISMATCH);
+    }
+    return (ok == 0);
+}
 
 /*
  * Computes public keys for GOST R 34.10-94 algorithm
  *
  */
 int gost94_compute_public(DSA *dsa)
-	{
-	/* Now fill algorithm parameters with correct values */
-	BN_CTX *ctx = BN_CTX_new();
-	if (!dsa->g)
-		{
-		GOSTerr(GOST_F_GOST94_COMPUTE_PUBLIC,GOST_R_KEY_IS_NOT_INITALIZED);
-		return 0;
-		}	
-	/* Compute public key  y = a^x mod p */
-	dsa->pub_key=BN_new();
-	BN_mod_exp(dsa->pub_key, dsa->g,dsa->priv_key,dsa->p,ctx);
-	BN_CTX_free(ctx);
-	return 1;
-	}
+{
+    /* Now fill algorithm parameters with correct values */
+    BN_CTX *ctx = BN_CTX_new();
+    if (!dsa->g) {
+        GOSTerr(GOST_F_GOST94_COMPUTE_PUBLIC, GOST_R_KEY_IS_NOT_INITALIZED);
+        return 0;
+    }
+    /* Compute public key  y = a^x mod p */
+    dsa->pub_key = BN_new();
+    BN_mod_exp(dsa->pub_key, dsa->g, dsa->priv_key, dsa->p, ctx);
+    BN_CTX_free(ctx);
+    return 1;
+}
 
 /*
  * Fill GOST 94 params, searching them in R3410_paramset array
  * by nid of paramset
  *
  */
-int fill_GOST94_params(DSA *dsa,int nid)
-	{
-	R3410_params *params=R3410_paramset;
-	while (params->nid!=NID_undef && params->nid !=nid) params++;
-	if (params->nid == NID_undef)
-		{
-		GOSTerr(GOST_F_FILL_GOST94_PARAMS,GOST_R_UNSUPPORTED_PARAMETER_SET);
-		return 0;
-		}	
+int fill_GOST94_params(DSA *dsa, int nid)
+{
+    R3410_params *params = R3410_paramset;
+    while (params->nid != NID_undef && params->nid != nid)
+        params++;
+    if (params->nid == NID_undef) {
+        GOSTerr(GOST_F_FILL_GOST94_PARAMS, GOST_R_UNSUPPORTED_PARAMETER_SET);
+        return 0;
+    }
 #define dump_signature(a,b,c)
-	if (dsa->p) { BN_free(dsa->p); }
-	dsa->p=NULL;
-	BN_dec2bn(&(dsa->p),params->p);
-	if (dsa->q) { BN_free(dsa->q); }
-	dsa->q=NULL;
-	BN_dec2bn(&(dsa->q),params->q);
-	if (dsa->g) { BN_free(dsa->g); }
-	dsa->g=NULL;
-	BN_dec2bn(&(dsa->g),params->a);
-	return 1;
-	}	
+    if (dsa->p) {
+        BN_free(dsa->p);
+    }
+    dsa->p = NULL;
+    BN_dec2bn(&(dsa->p), params->p);
+    if (dsa->q) {
+        BN_free(dsa->q);
+    }
+    dsa->q = NULL;
+    BN_dec2bn(&(dsa->q), params->q);
+    if (dsa->g) {
+        BN_free(dsa->g);
+    }
+    dsa->g = NULL;
+    BN_dec2bn(&(dsa->g), params->a);
+    return 1;
+}
 
 /*
  *  Generate GOST R 34.10-94 keypair
@@ -240,82 +241,80 @@ int fill_GOST94_params(DSA *dsa,int nid)
  *
  */
 int gost_sign_keygen(DSA *dsa)
-	{
-	dsa->priv_key = BN_new();
-	BN_rand_range(dsa->priv_key,dsa->q);
-	return gost94_compute_public( dsa);
-	}
+{
+    dsa->priv_key = BN_new();
+    BN_rand_range(dsa->priv_key, dsa->q);
+    return gost94_compute_public(dsa);
+}
 
 /* Unpack signature according to cryptocom rules  */
-/*
+/*-
 DSA_SIG *unpack_cc_signature(const unsigned char *sig,size_t siglen)
-	{
-	DSA_SIG *s;
-	s = DSA_SIG_new();
-	if (s == NULL)
-		{
-		GOSTerr(GOST_F_UNPACK_CC_SIGNATURE,GOST_R_NO_MEMORY);
-		return(NULL);
-		}
-	s->r = getbnfrombuf(sig, siglen/2);
-	s->s = getbnfrombuf(sig + siglen/2, siglen/2);
-	return s;
-	}
+        {
+        DSA_SIG *s;
+        s = DSA_SIG_new();
+        if (s == NULL)
+                {
+                GOSTerr(GOST_F_UNPACK_CC_SIGNATURE,GOST_R_NO_MEMORY);
+                return(NULL);
+                }
+        s->r = getbnfrombuf(sig, siglen/2);
+        s->s = getbnfrombuf(sig + siglen/2, siglen/2);
+        return s;
+        }
 */
 /* Unpack signature according to cryptopro rules  */
-DSA_SIG *unpack_cp_signature(const unsigned char *sig,size_t siglen)
-	{
-	DSA_SIG *s;
+DSA_SIG *unpack_cp_signature(const unsigned char *sig, size_t siglen)
+{
+    DSA_SIG *s;
 
-	s = DSA_SIG_new();
-	if (s == NULL)
-		{
-		GOSTerr(GOST_F_UNPACK_CP_SIGNATURE,GOST_R_NO_MEMORY);
-		return NULL;
-		}
-	s->s = getbnfrombuf(sig , siglen/2);
-	s->r = getbnfrombuf(sig + siglen/2, siglen/2);
-	return s;
-	}
+    s = DSA_SIG_new();
+    if (s == NULL) {
+        GOSTerr(GOST_F_UNPACK_CP_SIGNATURE, GOST_R_NO_MEMORY);
+        return NULL;
+    }
+    s->s = getbnfrombuf(sig, siglen / 2);
+    s->r = getbnfrombuf(sig + siglen / 2, siglen / 2);
+    return s;
+}
 
 /* Convert little-endian byte array into bignum */
 BIGNUM *hashsum2bn(const unsigned char *dgst)
-	{
-	unsigned char buf[32];
-	int i;
-	for (i=0;i<32;i++)
-		{
-		buf[31-i]=dgst[i];
-		}
-	return getbnfrombuf(buf,32);
-	}
+{
+    unsigned char buf[32];
+    int i;
+    for (i = 0; i < 32; i++) {
+        buf[31 - i] = dgst[i];
+    }
+    return getbnfrombuf(buf, 32);
+}
 
 /* Convert byte buffer to bignum, skipping leading zeros*/
-BIGNUM *getbnfrombuf(const unsigned char *buf,size_t len)
-	{
-	while (*buf==0&&len>0)
-		{
-		buf++; len--;
-		}
-	if (len)
-		{
-		return BN_bin2bn(buf,len,NULL);
-		}
-	else
-		{
-		BIGNUM *b=BN_new();
-		BN_zero(b);
-		return b;
-		}
-	}
+BIGNUM *getbnfrombuf(const unsigned char *buf, size_t len)
+{
+    while (*buf == 0 && len > 0) {
+        buf++;
+        len--;
+    }
+    if (len) {
+        return BN_bin2bn(buf, len, NULL);
+    } else {
+        BIGNUM *b = BN_new();
+        BN_zero(b);
+        return b;
+    }
+}
 
-/* Pack bignum into byte buffer of given size, filling all leading bytes
- * by zeros */
-int store_bignum(BIGNUM *bn, unsigned char *buf,int len)
-	{
-	int bytes = BN_num_bytes(bn);
-	if (bytes>len) return 0;
-	memset(buf,0,len);
-	BN_bn2bin(bn,buf+len-bytes);
-	return 1;
-	}	
+/*
+ * Pack bignum into byte buffer of given size, filling all leading bytes by
+ * zeros
+ */
+int store_bignum(BIGNUM *bn, unsigned char *buf, int len)
+{
+    int bytes = BN_num_bytes(bn);
+    if (bytes > len)
+        return 0;
+    memset(buf, 0, len);
+    BN_bn2bin(bn, buf + len - bytes);
+    return 1;
+}