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| author | Mattias Andrée <maandree@kth.se> | 2024-09-06 20:00:21 +0200 |
|---|---|---|
| committer | Mattias Andrée <maandree@kth.se> | 2024-09-06 20:00:21 +0200 |
| commit | e08dff210507b3a56e8aa1cd14d653ecfb3228f9 (patch) | |
| tree | 66771aef79dd8e5da0d88035cf601d0219d7010d /libhashsum_init_shake_hasher.3 | |
| parent | Document standard_partial_byte_{in,out}put_encoding in man pages (diff) | |
| download | libhashsum-e08dff210507b3a56e8aa1cd14d653ecfb3228f9.tar.gz libhashsum-e08dff210507b3a56e8aa1cd14d653ecfb3228f9.tar.bz2 libhashsum-e08dff210507b3a56e8aa1cd14d653ecfb3228f9.tar.xz | |
Add hash_excess_bits
Signed-off-by: Mattias Andrée <maandree@kth.se>
Diffstat (limited to 'libhashsum_init_shake_hasher.3')
| -rw-r--r-- | libhashsum_init_shake_hasher.3 | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/libhashsum_init_shake_hasher.3 b/libhashsum_init_shake_hasher.3 index 5ab1320..0891274 100644 --- a/libhashsum_init_shake_hasher.3 +++ b/libhashsum_init_shake_hasher.3 @@ -15,6 +15,7 @@ libhashsum_init_shake_hasher - initialise state for SHAKE hashing unsigned char \fIsupports_non_whole_bytes\fP; unsigned char \fIstandard_partial_byte_input_encoding\fP; unsigned char \fIstandard_partial_byte_output_encoding\fP; + unsigned char \fIhash_excess_bits\fP; size_t (*\fIprocess\fP)(struct libhashsum_hasher *\fPthis\fP, const void *\fPdata\fP, size_t \fPbytes\fP); int (*\fIfinalise_const\fP)(struct libhashsum_hasher *\fPthis\fP, const void *\fPdata\fP, size_t \fPbytes\fP, unsigned \fPextra_bits\fP); int (*\fIfinalise\fP)(struct libhashsum_hasher *\fPthis\fP, void *\fPdata\fP, size_t \fPbytes\fP, unsigned \fPextra_bits\fP, size_t \fPsize\fP); @@ -83,7 +84,17 @@ will be set to the block size, in bytes. .PP .I hasher->hash_size will be set to the hash size, in bytes -.RI ( (hashbits?hashbits:hcapbits)/8 ). +.RI ( ((hashbits?hashbits:hcapbits)+7)/8 ). +.PP +.I hasher->hash_excess_bits +will be set to number of bits the last byte in +the hash is padded with (it will be padded with +cleared bits in its most significant part). As +long as +.I hashbits +is a multiple of 8, this number will be 0 (the +entire last byte is used), otherwise, it will be +.IR 8-(hashbits&7) . .PP .I hasher->hash_output will be set to |