Zig 0.17.0-dev (Split by item)

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clamp

Perform the X25519 "clamping" operation. The scalar is then guaranteed to be a multiple of the cofactor.

scalar.clamp

pub fn clamp(s: *CompressedScalar) void

File

lib/std/crypto/25519/scalar.zig:53

Code

pub fn clamp(s: *CompressedScalar) void {
    s[0] &= 248;
    s[31] = (s[31] & 127) | 64;
}