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author | Amos Jeffries <squid3@treenet.co.nz> | 2015-02-10 21:38:47 +0100 |
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committer | Niels Möller <nisse@lysator.liu.se> | 2015-02-10 21:38:47 +0100 |
commit | e6d4db6a9da6bc1bc59c6cb471e53d5e1a236966 (patch) | |
tree | 61e984d2972065228870236f56b80128f5189fbe /base64url-encode.c | |
parent | 400c22286c8bd646806524146d64d041e67ffaed (diff) | |
download | nettle-e6d4db6a9da6bc1bc59c6cb471e53d5e1a236966.tar.gz |
Implement URL safe base64 coding, as specified by RFC 4648.
Diffstat (limited to 'base64url-encode.c')
-rw-r--r-- | base64url-encode.c | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/base64url-encode.c b/base64url-encode.c new file mode 100644 index 00000000..6af33fb8 --- /dev/null +++ b/base64url-encode.c @@ -0,0 +1,48 @@ +/* base64url-encode.c + + Copyright (C) 2015 Amos Jeffries, Niels Möller + + This file is part of GNU Nettle. + + GNU Nettle is free software: you can redistribute it and/or + modify it under the terms of either: + + * the GNU Lesser General Public License as published by the Free + Software Foundation; either version 3 of the License, or (at your + option) any later version. + + or + + * the GNU General Public License as published by the Free + Software Foundation; either version 2 of the License, or (at your + option) any later version. + + or both in parallel, as here. + + GNU Nettle 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 + General Public License for more details. + + You should have received copies of the GNU General Public License and + the GNU Lesser General Public License along with this program. If + not, see http://www.gnu.org/licenses/. +*/ + +#if HAVE_CONFIG_H +# include "config.h" +#endif + +#include "base64.h" + +void +base64url_encode_init(struct base64_encode_ctx *ctx) +{ + static const uint8_t base64url_encode_table[64] = + "ABCDEFGHIJKLMNOPQRSTUVWXYZ" + "abcdefghijklmnopqrstuvwxyz" + "0123456789-_"; + + ctx->word = ctx->bits = 0; + ctx->alphabet = base64url_encode_table; +} |