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core/crypto/_fiat/field_poly1305: Move routines (NFC)

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This commit is contained in:
Yawning Angel
2024-03-17 19:06:50 +09:00
parent 9a418fd27b
commit 31aba5a728
2 changed files with 29 additions and 31 deletions
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29
core/crypto/_fiat/field_poly1305/field.odin
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@@ -51,3 +51,32 @@ fe_from_u64s :: proc "contextless" (out1: ^Tight_Field_Element, lo, hi: u64) {
// This routine is only used to deserialize `r` which is confidential.
mem.zero_explicit(&tmp, size_of(tmp))
}
fe_zero :: proc "contextless" (out1: ^Tight_Field_Element) {
out1[0] = 0
out1[1] = 0
out1[2] = 0
}
fe_set :: #force_inline proc "contextless" (out1, arg1: ^Tight_Field_Element) {
x1 := arg1[0]
x2 := arg1[1]
x3 := arg1[2]
out1[0] = x1
out1[1] = x2
out1[2] = x3
}
@(optimization_mode="none")
fe_cond_swap :: #force_no_inline proc "contextless" (out1, out2: ^Tight_Field_Element, arg1: bool) {
mask := -u64(arg1)
x := (out1[0] ~ out2[0]) & mask
x1, y1 := out1[0] ~ x, out2[0] ~ x
x = (out1[1] ~ out2[1]) & mask
x2, y2 := out1[1] ~ x, out2[1] ~ x
x = (out1[2] ~ out2[2]) & mask
x3, y3 := out1[2] ~ x, out2[2] ~ x
out1[0], out2[0] = x1, y1
out1[1], out2[1] = x2, y2
out1[2], out2[2] = x3, y3
}

31
core/crypto/_fiat/field_poly1305/field4344.odin
View File

@@ -325,34 +325,3 @@ fe_relax :: proc "contextless" (out1: ^Loose_Field_Element, arg1: ^Tight_Field_E
out1[1] = x2
out1[2] = x3
}
// The following routines were added by hand, and do not come from fiat-crypto.
fe_zero :: proc "contextless" (out1: ^Tight_Field_Element) {
out1[0] = 0
out1[1] = 0
out1[2] = 0
}
fe_set :: #force_inline proc "contextless" (out1, arg1: ^Tight_Field_Element) {
x1 := arg1[0]
x2 := arg1[1]
x3 := arg1[2]
out1[0] = x1
out1[1] = x2
out1[2] = x3
}
@(optimization_mode="none")
fe_cond_swap :: #force_no_inline proc "contextless" (out1, out2: ^Tight_Field_Element, arg1: bool) {
mask := -u64(arg1)
x := (out1[0] ~ out2[0]) & mask
x1, y1 := out1[0] ~ x, out2[0] ~ x
x = (out1[1] ~ out2[1]) & mask
x2, y2 := out1[1] ~ x, out2[1] ~ x
x = (out1[2] ~ out2[2]) & mask
x3, y3 := out1[2] ~ x, out2[2] ~ x
out1[0], out2[0] = x1, y1
out1[1], out2[1] = x2, y2
out1[2], out2[2] = x3, y3
}