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Make public some sha1 module procedures (#11655) [feature]

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Make "newSha1State", "update" and "finalize" procedures from the sha1
module public in order to be possible to compute single sha1 hash of
multiple separate blocks of data.
This commit is contained in:
Ivan Bobev 2019-07-04 23:29:03 +03:00 • committed by Andreas Rumpf
commit d914dca513
1 changed files with 3 additions and 3 deletions
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6
lib/std/sha1.nim
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@ -52,7 +52,7 @@ type
# This implementation of the SHA1 algorithm was ported from the Chromium OS one # This implementation of the SHA1 algorithm was ported from the Chromium OS one
# with minor modifications that should not affect its functionality. # with minor modifications that should not affect its functionality.
proc newSha1State(): Sha1State = proc newSha1State*(): Sha1State =
result.count = 0 result.count = 0
result.state[0] = 0x67452301'u32 result.state[0] = 0x67452301'u32
result.state[1] = 0xEFCDAB89'u32 result.state[1] = 0xEFCDAB89'u32
@ -145,7 +145,7 @@ proc transform(ctx: var Sha1State) =
ctx.state[3] += D ctx.state[3] += D
ctx.state[4] += E ctx.state[4] += E
proc update(ctx: var Sha1State, data: openArray[char]) = proc update*(ctx: var Sha1State, data: openArray[char]) =
var i = ctx.count mod 64 var i = ctx.count mod 64
var j = 0 var j = 0
var len = data.len var len = data.len
@ -176,7 +176,7 @@ proc update(ctx: var Sha1State, data: openArray[char]) =
i = 0 i = 0
ctx.count += data.len ctx.count += data.len
proc finalize(ctx: var Sha1State): Sha1Digest = proc finalize*(ctx: var Sha1State): Sha1Digest =
var cnt = uint64(ctx.count * 8) var cnt = uint64(ctx.count * 8)
# A 1 bit # A 1 bit
update(ctx, "\x80") update(ctx, "\x80")