38 lines
882 B
C
38 lines
882 B
C
#include <common/base64.h>
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#include <sodium.h>
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#include <sodium/utils.h>
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/* Decode/encode from/to base64, base64 helper functions.
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* We import base64 from libsodium to generate tor V3 ED25519-V3 onions from blobs
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*/
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char *b64_encode(const tal_t *ctx, const u8 *data, size_t len)
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{
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char *str = tal_arr(ctx, char, sodium_base64_encoded_len(len, sodium_base64_VARIANT_ORIGINAL) + 1);
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str = sodium_bin2base64(str, tal_count(str), data,
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len, sodium_base64_VARIANT_ORIGINAL);
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return str;
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}
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u8 *b64_decode(const tal_t *ctx, const char *str, size_t len)
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{
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size_t bin_len = len + 1;
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u8 *ret = tal_arr(ctx, u8, bin_len);
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if (!sodium_base642bin(ret,
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tal_count(ret),
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(const char * const)str,
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len,
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NULL,
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&bin_len,
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NULL,
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sodium_base64_VARIANT_ORIGINAL))
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return tal_free(ret);
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ret[bin_len] = 0;
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tal_resize(&ret, bin_len + 1);
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return ret;
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}
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