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Diffstat (limited to 'bsum.1')
| -rw-r--r-- | bsum.1 | 25 |
1 files changed, 24 insertions, 1 deletions
@@ -3,7 +3,7 @@ bsum - Compute and check BLAKE message digests .SH SYNOPSIS .B bsum -[-l bits] [-c | -B | -L | -U] [-xz] +[-l bits] [-c | -B | -L | -U] [-S salt] [-xz] .RI [ file "] ..." .SH DESCRIPTION Print or check BLAKE checksums. @@ -38,6 +38,29 @@ Output checksums in lower-case hexadecimal representation. (Default) Select version of the BLAKE algorithm. Valid values are 224 (default), 256, 384, and 512. .TP +.BI "-S " salt +Specify a 16-byte (for the 224 and 256 bit versions) or +32-byte salt (for the 384 and 512 bit versions) that the +BLAKE algorithm shall use. This salt shall be expressed +in full length hexadecimal: 32 (for 16-bytes) or 64 +(for 32-bytes) hexadecimal digits, or rather 16 or 32 pairs +of hexadecimal digits, ordered from left to right to specify +the values from index 0 to the last byte. In each pair, +the left digit stores the high bits of the byte, and the +right digit stores the low bits of the byte. For example, +the digit pair +.B 80 +represents a byte with the decimal value 128, whereas the +digit pair +.B 08 +represents a byte with the decimal value 8. The pairs +are joined without any delimiters, and no byte may be +omitted. So, for a 16 byte salt where each byte's value +is its index, the salt is expressed as, +.BR 000102030405060708090a0b0c0d0e0f , +however each letter may be either small or capital. +If no salt is specified, an all-zeroes salt is used. +.TP .B -U Output checksums in upper-case hexadecimal representation. .TP |