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base16-encode.c
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Niels Möller authored
config.h. Rev: src/nettle/ChangeLog:1.195 Rev: src/nettle/aes-decrypt-table.c:1.4 Rev: src/nettle/aes-decrypt.c:1.5 Rev: src/nettle/aes-encrypt-table.c:1.4 Rev: src/nettle/aes-encrypt.c:1.5 Rev: src/nettle/aes-meta.c:1.3 Rev: src/nettle/aes-set-decrypt-key.c:1.2 Rev: src/nettle/aes-set-encrypt-key.c:1.2 Rev: src/nettle/aes.c:1.12 Rev: src/nettle/aesdata.c:1.2 Rev: src/nettle/arcfour-meta.c:1.2 Rev: src/nettle/arcfour.c:1.3 Rev: src/nettle/base16-decode.c:1.2 Rev: src/nettle/base16-encode.c:1.2 Rev: src/nettle/base16-meta.c:1.3 Rev: src/nettle/base64-decode.c:1.5 Rev: src/nettle/base64-encode.c:1.3 Rev: src/nettle/base64-meta.c:1.4 Rev: src/nettle/bignum-random.c:1.3 Rev: src/nettle/bignum.c:1.7 Rev: src/nettle/blowfish.c:1.4 Rev: src/nettle/buffer-init.c:1.3 Rev: src/nettle/buffer.c:1.8 Rev: src/nettle/cast128-meta.c:1.3 Rev: src/nettle/cast128.c:1.4 Rev: src/nettle/cbc.c:1.6 Rev: src/nettle/des-compat.c:1.10 Rev: src/nettle/des.c:1.7 Rev: src/nettle/des3.c:1.2 Rev: src/nettle/dsa-keygen.c:1.6 Rev: src/nettle/dsa-sign.c:1.7 Rev: src/nettle/dsa-verify.c:1.4 Rev: src/nettle/dsa.c:1.5 Rev: src/nettle/examples/io.c:1.4 Rev: src/nettle/examples/nettle-benchmark.c:1.8 Rev: src/nettle/examples/nettle-openssl.c:1.2 Rev: src/nettle/examples/rsa-keygen.c:1.10 Rev: src/nettle/examples/rsa-sign.c:1.5 Rev: src/nettle/examples/rsa-verify.c:1.4 Rev: src/nettle/hmac-md5.c:1.5 Rev: src/nettle/hmac-sha1.c:1.2 Rev: src/nettle/hmac-sha256.c:1.2 Rev: src/nettle/hmac.c:1.4 Rev: src/nettle/knuth-lfib.c:1.2 Rev: src/nettle/md5-compat.c:1.3 Rev: src/nettle/md5-meta.c:1.2 Rev: src/nettle/md5.c:1.6 Rev: src/nettle/memxor.c:1.2 Rev: src/nettle/nettle-internal.c:1.3 Rev: src/nettle/pgp-encode.c:1.4 Rev: src/nettle/pkcs1-rsa-md5.c:1.2 Rev: src/nettle/pkcs1-rsa-sha1.c:1.2 Rev: src/nettle/pkcs1.c:1.2 Rev: src/nettle/realloc.c:1.3 Rev: src/nettle/rsa-compat.c:1.8 Rev: src/nettle/rsa-decrypt.c:1.4 Rev: src/nettle/rsa-encrypt.c:1.5 Rev: src/nettle/rsa-keygen.c:1.5 Rev: src/nettle/rsa-md5-sign.c:1.2 Rev: src/nettle/rsa-md5-verify.c:1.2 Rev: src/nettle/rsa-sha1-sign.c:1.2 Rev: src/nettle/rsa-sha1-verify.c:1.2 Rev: src/nettle/rsa-sign.c:1.3 Rev: src/nettle/rsa-verify.c:1.2 Rev: src/nettle/rsa.c:1.12 Rev: src/nettle/rsa2openpgp.c:1.2 Rev: src/nettle/rsa2sexp.c:1.7 Rev: src/nettle/serpent-meta.c:1.2 Rev: src/nettle/serpent.c:1.4 Rev: src/nettle/sexp-format.c:1.9 Rev: src/nettle/sexp-transport-format.c:1.2 Rev: src/nettle/sexp-transport.c:1.4 Rev: src/nettle/sexp.c:1.14 Rev: src/nettle/sexp2bignum.c:1.5 Rev: src/nettle/sexp2dsa.c:1.4 Rev: src/nettle/sexp2rsa.c:1.11 Rev: src/nettle/sha1-meta.c:1.2 Rev: src/nettle/sha1.c:1.8 Rev: src/nettle/sha256-meta.c:1.2 Rev: src/nettle/sha256.c:1.3 Rev: src/nettle/tools/input.c:1.2 Rev: src/nettle/tools/misc.c:1.2 Rev: src/nettle/tools/output.c:1.3 Rev: src/nettle/tools/parse.c:1.2 Rev: src/nettle/tools/sexp-conv.c:1.14 Rev: src/nettle/twofish-meta.c:1.2 Rev: src/nettle/twofish.c:1.6 Rev: src/nettle/yarrow256.c:1.17 Rev: src/nettle/yarrow_key_event.c:1.4
Niels Möller authoredconfig.h. Rev: src/nettle/ChangeLog:1.195 Rev: src/nettle/aes-decrypt-table.c:1.4 Rev: src/nettle/aes-decrypt.c:1.5 Rev: src/nettle/aes-encrypt-table.c:1.4 Rev: src/nettle/aes-encrypt.c:1.5 Rev: src/nettle/aes-meta.c:1.3 Rev: src/nettle/aes-set-decrypt-key.c:1.2 Rev: src/nettle/aes-set-encrypt-key.c:1.2 Rev: src/nettle/aes.c:1.12 Rev: src/nettle/aesdata.c:1.2 Rev: src/nettle/arcfour-meta.c:1.2 Rev: src/nettle/arcfour.c:1.3 Rev: src/nettle/base16-decode.c:1.2 Rev: src/nettle/base16-encode.c:1.2 Rev: src/nettle/base16-meta.c:1.3 Rev: src/nettle/base64-decode.c:1.5 Rev: src/nettle/base64-encode.c:1.3 Rev: src/nettle/base64-meta.c:1.4 Rev: src/nettle/bignum-random.c:1.3 Rev: src/nettle/bignum.c:1.7 Rev: src/nettle/blowfish.c:1.4 Rev: src/nettle/buffer-init.c:1.3 Rev: src/nettle/buffer.c:1.8 Rev: src/nettle/cast128-meta.c:1.3 Rev: src/nettle/cast128.c:1.4 Rev: src/nettle/cbc.c:1.6 Rev: src/nettle/des-compat.c:1.10 Rev: src/nettle/des.c:1.7 Rev: src/nettle/des3.c:1.2 Rev: src/nettle/dsa-keygen.c:1.6 Rev: src/nettle/dsa-sign.c:1.7 Rev: src/nettle/dsa-verify.c:1.4 Rev: src/nettle/dsa.c:1.5 Rev: src/nettle/examples/io.c:1.4 Rev: src/nettle/examples/nettle-benchmark.c:1.8 Rev: src/nettle/examples/nettle-openssl.c:1.2 Rev: src/nettle/examples/rsa-keygen.c:1.10 Rev: src/nettle/examples/rsa-sign.c:1.5 Rev: src/nettle/examples/rsa-verify.c:1.4 Rev: src/nettle/hmac-md5.c:1.5 Rev: src/nettle/hmac-sha1.c:1.2 Rev: src/nettle/hmac-sha256.c:1.2 Rev: src/nettle/hmac.c:1.4 Rev: src/nettle/knuth-lfib.c:1.2 Rev: src/nettle/md5-compat.c:1.3 Rev: src/nettle/md5-meta.c:1.2 Rev: src/nettle/md5.c:1.6 Rev: src/nettle/memxor.c:1.2 Rev: src/nettle/nettle-internal.c:1.3 Rev: src/nettle/pgp-encode.c:1.4 Rev: src/nettle/pkcs1-rsa-md5.c:1.2 Rev: src/nettle/pkcs1-rsa-sha1.c:1.2 Rev: src/nettle/pkcs1.c:1.2 Rev: src/nettle/realloc.c:1.3 Rev: src/nettle/rsa-compat.c:1.8 Rev: src/nettle/rsa-decrypt.c:1.4 Rev: src/nettle/rsa-encrypt.c:1.5 Rev: src/nettle/rsa-keygen.c:1.5 Rev: src/nettle/rsa-md5-sign.c:1.2 Rev: src/nettle/rsa-md5-verify.c:1.2 Rev: src/nettle/rsa-sha1-sign.c:1.2 Rev: src/nettle/rsa-sha1-verify.c:1.2 Rev: src/nettle/rsa-sign.c:1.3 Rev: src/nettle/rsa-verify.c:1.2 Rev: src/nettle/rsa.c:1.12 Rev: src/nettle/rsa2openpgp.c:1.2 Rev: src/nettle/rsa2sexp.c:1.7 Rev: src/nettle/serpent-meta.c:1.2 Rev: src/nettle/serpent.c:1.4 Rev: src/nettle/sexp-format.c:1.9 Rev: src/nettle/sexp-transport-format.c:1.2 Rev: src/nettle/sexp-transport.c:1.4 Rev: src/nettle/sexp.c:1.14 Rev: src/nettle/sexp2bignum.c:1.5 Rev: src/nettle/sexp2dsa.c:1.4 Rev: src/nettle/sexp2rsa.c:1.11 Rev: src/nettle/sha1-meta.c:1.2 Rev: src/nettle/sha1.c:1.8 Rev: src/nettle/sha256-meta.c:1.2 Rev: src/nettle/sha256.c:1.3 Rev: src/nettle/tools/input.c:1.2 Rev: src/nettle/tools/misc.c:1.2 Rev: src/nettle/tools/output.c:1.3 Rev: src/nettle/tools/parse.c:1.2 Rev: src/nettle/tools/sexp-conv.c:1.14 Rev: src/nettle/twofish-meta.c:1.2 Rev: src/nettle/twofish.c:1.6 Rev: src/nettle/yarrow256.c:1.17 Rev: src/nettle/yarrow_key_event.c:1.4
base16-encode.c 1.54 KiB
/* base16-encode.c
*
* Hex encoding.
*/
/* nettle, low-level cryptographics library
*
* Copyright (C) 2002 Niels Möller
*
* The nettle library is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or (at your
* option) any later version.
*
* The nettle library is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
* License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the nettle library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
* MA 02111-1307, USA.
*/
#if HAVE_CONFIG_H
# include "config.h"
#endif
#include "base16.h"
static const uint8_t
hex_digits[16] = "0123456789abcdef";
#define DIGIT(x) (hex_digits[(x) & 0xf])
/* FIXME: Is this really needed? */
/* Encodes a single byte. Always stores two digits in dst[0] and dst[1]. */
void
base16_encode_single(uint8_t *dst,
uint8_t src)
{
dst[0] = DIGIT(src/0x10);
dst[1] = DIGIT(src);
}
/* Always stores BASE16_ENCODE_LENGTH(length) digits in dst. */
void
base16_encode_update(uint8_t *dst,
unsigned length,
const uint8_t *src)
{
unsigned i;
for (i = 0, dst; i<length; i++, dst += 2)
base16_encode_single(dst, src[i]);
}