t_pkey.c

mediastreamer2是开源的网络传输媒体流的库

				goto err;

			if (BIO_printf(bp, "Basis Type: %s\n", 
				OBJ_nid2sn(basis_type)) <= 0)
				goto err;

			/* print the polynomial */
			if ((p != NULL) && !print(bp, "Polynomial:", p, buffer,
				off))
				goto err;
			}
		else
			{
			if ((p != NULL) && !print(bp, "Prime:", p, buffer,off))
				goto err;
			}
		if ((a != NULL) && !print(bp, "A:   ", a, buffer, off)) 
			goto err;
		if ((b != NULL) && !print(bp, "B:   ", b, buffer, off))
			goto err;
		if (form == POINT_CONVERSION_COMPRESSED)
			{
			if ((gen != NULL) && !print(bp, gen_compressed, gen,
				buffer, off))
				goto err;
			}
		else if (form == POINT_CONVERSION_UNCOMPRESSED)
			{
			if ((gen != NULL) && !print(bp, gen_uncompressed, gen,
				buffer, off))
				goto err;
			}
		else /* form == POINT_CONVERSION_HYBRID */
			{
			if ((gen != NULL) && !print(bp, gen_hybrid, gen,
				buffer, off))
				goto err;
			}
		if ((order != NULL) && !print(bp, "Order: ", order, 
			buffer, off)) goto err;
		if ((cofactor != NULL) && !print(bp, "Cofactor: ", cofactor, 
			buffer, off)) goto err;
		if (seed && !print_bin(bp, "Seed:", seed, seed_len, off))
			goto err;
		}
	ret=1;
err:
	if (!ret)
 		ECerr(EC_F_ECPKPARAMETERS_PRINT, reason);
	if (p) 
		BN_free(p);
	if (a) 
		BN_free(a);
	if (b)
		BN_free(b);
	if (gen)
		BN_free(gen);
	if (order)
		BN_free(order);
	if (cofactor)
		BN_free(cofactor);
	if (ctx)
		BN_CTX_free(ctx);
	if (buffer != NULL) 
		OPENSSL_free(buffer);
	return(ret);	
	}

int EC_KEY_print(BIO *bp, const EC_KEY *x, int off)
	{
	unsigned char *buffer=NULL;
	size_t	buf_len=0, i;
	int     ret=0, reason=ERR_R_BIO_LIB;
	BIGNUM  *pub_key=NULL, *order=NULL;
	BN_CTX  *ctx=NULL;
	const EC_GROUP *group;
	const EC_POINT *public_key;
	const BIGNUM *priv_key;
 
	if (x == NULL || (group = EC_KEY_get0_group(x)) == NULL)
		{
		reason = ERR_R_PASSED_NULL_PARAMETER;
		goto err;
		}

	public_key = EC_KEY_get0_public_key(x);
	if ((pub_key = EC_POINT_point2bn(group, public_key,
		EC_KEY_get_conv_form(x), NULL, ctx)) == NULL)
		{
		reason = ERR_R_EC_LIB;
		goto err;
		}

	buf_len = (size_t)BN_num_bytes(pub_key);
	priv_key = EC_KEY_get0_private_key(x);
	if (priv_key != NULL)
		{
		if ((i = (size_t)BN_num_bytes(priv_key)) > buf_len)
			buf_len = i;
		}

	buf_len += 10;
	if ((buffer = OPENSSL_malloc(buf_len)) == NULL)
		{
		reason = ERR_R_MALLOC_FAILURE;
		goto err;
		}

	if (priv_key != NULL)
		{
		if (!BIO_indent(bp, off, 128))
			goto err;
		if ((order = BN_new()) == NULL)
			goto err;
		if (!EC_GROUP_get_order(group, order, NULL))
			goto err;
		if (BIO_printf(bp, "Private-Key: (%d bit)\n", 
			BN_num_bits(order)) <= 0) goto err;
		}
  
	if ((priv_key != NULL) && !print(bp, "priv:", priv_key, 
		buffer, off))
		goto err;
	if ((pub_key != NULL) && !print(bp, "pub: ", pub_key,
		buffer, off))
		goto err;
	if (!ECPKParameters_print(bp, group, off))
		goto err;
	ret=1;
err:
	if (!ret)
 		ECerr(EC_F_EC_KEY_PRINT, reason);
	if (pub_key) 
		BN_free(pub_key);
	if (order)
		BN_free(order);
	if (ctx)
		BN_CTX_free(ctx);
	if (buffer != NULL)
		OPENSSL_free(buffer);
	return(ret);
	}
#endif /* OPENSSL_NO_EC */

static int print(BIO *bp, const char *number, const BIGNUM *num, unsigned char *buf,
	     int off)
	{
	int n,i;
	const char *neg;

	if (num == NULL) return(1);
	neg = (BN_is_negative(num))?"-":"";
	if(!BIO_indent(bp,off,128))
		return 0;
	if (BN_is_zero(num))
		{
		if (BIO_printf(bp, "%s 0\n", number) <= 0)
			return 0;
		return 1;
		}

	if (BN_num_bytes(num) <= BN_BYTES)
		{
		if (BIO_printf(bp,"%s %s%lu (%s0x%lx)\n",number,neg,
			(unsigned long)num->d[0],neg,(unsigned long)num->d[0])
			<= 0) return(0);
		}
	else
		{
		buf[0]=0;
		if (BIO_printf(bp,"%s%s",number,
			(neg[0] == '-')?" (Negative)":"") <= 0)
			return(0);
		n=BN_bn2bin(num,&buf[1]);
	
		if (buf[1] & 0x80)
			n++;
		else	buf++;

		for (i=0; i<n; i++)
			{
			if ((i%15) == 0)
				{
				if(BIO_puts(bp,"\n") <= 0
				   || !BIO_indent(bp,off+4,128))
				    return 0;
				}
			if (BIO_printf(bp,"%02x%s",buf[i],((i+1) == n)?"":":")
				<= 0) return(0);
			}
		if (BIO_write(bp,"\n",1) <= 0) return(0);
		}
	return(1);
	}

#ifndef OPENSSL_NO_EC
static int print_bin(BIO *fp, const char *name, const unsigned char *buf,
		size_t len, int off)
	{
	size_t i;
	char str[128];

	if (buf == NULL)
		return 1;
	if (off)
		{
		if (off > 128)
			off=128;
		memset(str,' ',off);
		if (BIO_write(fp, str, off) <= 0)
			return 0;
		}

	if (BIO_printf(fp,"%s", name) <= 0)
		return 0;

	for (i=0; i<len; i++)
		{
		if ((i%15) == 0)
			{
			str[0]='\n';
			memset(&(str[1]),' ',off+4);
			if (BIO_write(fp, str, off+1+4) <= 0)
				return 0;
			}
		if (BIO_printf(fp,"%02x%s",buf[i],((i+1) == len)?"":":") <= 0)
			return 0;
		}
	if (BIO_write(fp,"\n",1) <= 0)
		return 0;

	return 1;
	}
#endif

#ifndef OPENSSL_NO_DH
#ifndef OPENSSL_NO_FP_API
int DHparams_print_fp(FILE *fp, const DH *x)
	{
	BIO *b;
	int ret;

	if ((b=BIO_new(BIO_s_file())) == NULL)
		{
		DHerr(DH_F_DHPARAMS_PRINT_FP,ERR_R_BUF_LIB);
		return(0);
		}
	BIO_set_fp(b,fp,BIO_NOCLOSE);
	ret=DHparams_print(b, x);
	BIO_free(b);
	return(ret);
	}
#endif

int DHparams_print(BIO *bp, const DH *x)
	{
	unsigned char *m=NULL;
	int reason=ERR_R_BUF_LIB,ret=0;
	size_t buf_len=0, i;

	if (x->p)
		buf_len = (size_t)BN_num_bytes(x->p);
	else
		{
		reason = ERR_R_PASSED_NULL_PARAMETER;
		goto err;
		}
	if (x->g)
		if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
			buf_len = i;
	m=(unsigned char *)OPENSSL_malloc(buf_len+10);
	if (m == NULL)
		{
		reason=ERR_R_MALLOC_FAILURE;
		goto err;
		}

	if (BIO_printf(bp,"Diffie-Hellman-Parameters: (%d bit)\n",
		BN_num_bits(x->p)) <= 0)
		goto err;
	if (!print(bp,"prime:",x->p,m,4)) goto err;
	if (!print(bp,"generator:",x->g,m,4)) goto err;
	if (x->length != 0)
		{
		if (BIO_printf(bp,"    recommended-private-length: %d bits\n",
			(int)x->length) <= 0) goto err;
		}
	ret=1;
	if (0)
		{
err:
		DHerr(DH_F_DHPARAMS_PRINT,reason);
		}
	if (m != NULL) OPENSSL_free(m);
	return(ret);
	}
#endif

#ifndef OPENSSL_NO_DSA
#ifndef OPENSSL_NO_FP_API
int DSAparams_print_fp(FILE *fp, const DSA *x)
	{
	BIO *b;
	int ret;

	if ((b=BIO_new(BIO_s_file())) == NULL)
		{
		DSAerr(DSA_F_DSAPARAMS_PRINT_FP,ERR_R_BUF_LIB);
		return(0);
		}
	BIO_set_fp(b,fp,BIO_NOCLOSE);
	ret=DSAparams_print(b, x);
	BIO_free(b);
	return(ret);
	}
#endif

int DSAparams_print(BIO *bp, const DSA *x)
	{
	unsigned char *m=NULL;
	int ret=0;
	size_t buf_len=0,i;

	if (x->p)
		buf_len = (size_t)BN_num_bytes(x->p);
	else
		{
		DSAerr(DSA_F_DSA_PRINT,DSA_R_MISSING_PARAMETERS);
		goto err;
		}
	if (x->q)
		if (buf_len < (i = (size_t)BN_num_bytes(x->q)))
			buf_len = i;
	if (x->g)
		if (buf_len < (i = (size_t)BN_num_bytes(x->g)))
			buf_len = i;
	m=(unsigned char *)OPENSSL_malloc(buf_len+10);
	if (m == NULL)
		{
		DSAerr(DSA_F_DSA_PRINT,ERR_R_MALLOC_FAILURE);
		goto err;
		}

	if (BIO_printf(bp,"DSA-Parameters: (%d bit)\n",
		BN_num_bits(x->p)) <= 0)
		goto err;
	if (!print(bp,"p:",x->p,m,4)) goto err;
	if (!print(bp,"q:",x->q,m,4)) goto err;
	if (!print(bp,"g:",x->g,m,4)) goto err;
	ret=1;
err:
	if (m != NULL) OPENSSL_free(m);
	return(ret);
	}

#endif /* !OPENSSL_NO_DSA */

#ifndef OPENSSL_NO_EC
#ifndef OPENSSL_NO_FP_API
int ECParameters_print_fp(FILE *fp, const EC_KEY *x)
	{
	BIO *b;
	int ret;
 
	if ((b=BIO_new(BIO_s_file())) == NULL)
		{
		ECerr(EC_F_ECPARAMETERS_PRINT_FP, ERR_R_BIO_LIB);
		return(0);
		}
	BIO_set_fp(b, fp, BIO_NOCLOSE);
	ret = ECParameters_print(b, x);
	BIO_free(b);
	return(ret);
	}
#endif

int ECParameters_print(BIO *bp, const EC_KEY *x)
	{
	int     reason=ERR_R_EC_LIB, ret=0;
	BIGNUM	*order=NULL;
	const EC_GROUP *group;
 
	if (x == NULL || (group = EC_KEY_get0_group(x)) == NULL)
		{
		reason = ERR_R_PASSED_NULL_PARAMETER;;
		goto err;
		}

	if ((order = BN_new()) == NULL)
		{
		reason = ERR_R_MALLOC_FAILURE;
		goto err;
		}

	if (!EC_GROUP_get_order(group, order, NULL))
		{
		reason = ERR_R_EC_LIB;
		goto err;
		}
 
	if (BIO_printf(bp, "ECDSA-Parameters: (%d bit)\n", 
		BN_num_bits(order)) <= 0)
		goto err;
	if (!ECPKParameters_print(bp, group, 4))
		goto err;
	ret=1;
err:
	if (order)
		BN_free(order);
	ECerr(EC_F_ECPARAMETERS_PRINT, reason);
	return(ret);
	}
  
#endif