Skip to content
Snippets Groups Projects
Select Git revision
  • 8bdcb98a2429f133d81d26fbb60618663325f8d5
  • master default
  • wip-slh-dsa-sha2-128s
  • master-updates
  • release-3.10-fixes
  • getopt-prototype
  • fix-bcrypt-warning
  • refactor-hmac
  • wip-use-alignas
  • trim-sha3-context
  • fix-gitlab-ci
  • check-fat-emulate
  • delete-digest_func-size
  • slh-dsa-shake-128f-nettle
  • slh-dsa-shake-128s-nettle
  • slh-dsa-shake-128s
  • delete-openpgp
  • ppc64-sha512
  • delete-md5-compat
  • cleanup-hmac-tests
  • ppc64-sha256
  • nettle_3.10.2_release_20250626
  • nettle_3.10.1_release_20241230
  • nettle_3.10_release_20240616
  • nettle_3.10rc2
  • nettle_3.10rc1
  • nettle_3.9.1_release_20230601
  • nettle_3.9_release_20230514
  • nettle_3.8.1_release_20220727
  • nettle_3.8_release_20220602
  • nettle_3.7.3_release_20210606
  • nettle_3.7.2_release_20210321
  • nettle_3.7.1_release_20210217
  • nettle_3.7_release_20210104
  • nettle_3.7rc1
  • nettle_3.6_release_20200429
  • nettle_3.6rc3
  • nettle_3.6rc2
  • nettle_3.6rc1
  • nettle_3.5.1_release_20190627
  • nettle_3.5_release_20190626
41 results

testutils.c

Blame
  • base64.h 2.13 KiB
    /* base64.h
     *
     * "ASCII armor" codecs.
     */
    
    /* nettle, low-level cryptographics library
     *
     * Copyright (C) 2002 Niels Mller, Dan Egnor
     *  
     * 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.
     */
     
    #ifndef NETTLE_BASE64_H_INCLUDED
    #define NETTLE_BASE64_H_INCLUDED
    
    #include <inttypes.h>
    
    /* Base64 encoding */
    
    #define BASE64_BINARY_BLOCK_SIZE 3
    #define BASE64_TEXT_BLOCK_SIZE 4
    
    unsigned /* Returns the length of encoded data */
    base64_encode(uint8_t *dst,
                  unsigned src_length,
                  const uint8_t *src);
    
    /* Precise length of encoded data (including padding) */
    #define BASE64_ENCODE_LENGTH(src_length)		\
            ((BASE64_BINARY_BLOCK_SIZE - 1 + (src_length))	\
    	/ BASE64_BINARY_BLOCK_SIZE * BASE64_TEXT_BLOCK_SIZE)
    
    struct base64_ctx /* Internal, do not modify */
    {
      uint16_t accum; /* Partial byte accumulated so far, filled msb first */
      int16_t shift;  /* Bitshift for the next 6-bit segment added to buffer */
    };
    
    void
    base64_decode_init(struct base64_ctx *ctx);
    
    unsigned /* Returns the length of decoded data */
    base64_decode_update(struct base64_ctx *ctx,
                         uint8_t *dst,
                         unsigned src_length,
                         const uint8_t *src);
    
    /* FIXME: Does this always round correctly? */
    /* Maximum length of decoded data */
    #define BASE64_DECODE_LENGTH(src_length) \
    	((src_length) * BASE64_BINARY_BLOCK_SIZE / BASE64_TEXT_BLOCK_SIZE)
    
    #endif /* NETTLE_BASE64_H_INCLUDED */