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73 lines
1.8 KiB
C
73 lines
1.8 KiB
C
/* j/5/blake.c
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**
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*/
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#include "all.h"
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#include <argon2.h>
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#include "../src/blake2/blake2.h"
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/* functions
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*/
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u3_noun
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u3qe_blake(u3_atom wid, u3_atom dat,
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u3_atom wik, u3_atom dak,
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u3_atom out)
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{
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c3_assert(_(u3a_is_cat(wid)) && _(u3a_is_cat(wik)) && _(u3a_is_cat(out)));
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// flip endianness for the internal blake2b function
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dat = u3qc_rev(3, wid, dat);
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dak = u3qc_rev(3, wik, dak);
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c3_y* dat_y = (c3_y*)u3a_malloc(wid);
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u3r_bytes(0, wid, (void*)dat_y, dat);
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c3_y* dak_y = (c3_y*)u3a_malloc(wik);
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u3r_bytes(0, wik, (void*)dak_y, dak);
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int ret;
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c3_y out_y[64];
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ret = blake2b(out_y, // OUT: output
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out, // IN: max output size
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dat_y, // IN: msg body
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wid, // IN: msg len
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dak_y, // IN: key body
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wik); // IN: key len
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/* free() BEFORE checking error code;
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we don't want to leak memory if we return early
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*/
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u3a_free(dat_y);
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u3a_free(dak_y);
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if ( 0 != ret )
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{
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fprintf(stderr, "\rblake jet: cryto lib error\n");
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return u3m_bail(c3__exit);
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}
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return u3kc_rev(3, out, u3i_bytes(out, out_y));
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}
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u3_noun
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u3we_blake(u3_noun cor)
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{
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u3_noun msg, key, out, // arguments
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wid, dat, // destructured msg
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wik, dak; // destructured key
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if ( c3n == u3r_mean(cor, u3x_sam_2, &msg,
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u3x_sam_6, &key,
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u3x_sam_7, &out, 0) ||
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u3r_cell(msg, &wid, &dat) || u3ud(wid) || u3ud(dat) ||
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u3r_cell(key, &wik, &dak) || u3ud(wik) || u3ud(dak) ||
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u3ud(out) )
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{
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fprintf(stderr, "\rblake jet: arguments error\n");
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return u3m_bail(c3__exit);
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} else {
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return u3qe_blake(wid, dat, wik, dak, out);
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}
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}
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