bits.Sub64(l0, s0, 0) _, b = bits.Sub64(l1, s1, b) _, b = bits.Sub64(l2, s2, b) _, b = bits.Sub64(l3, s3, b) return b == 0 } // SetBytesWithClamping applies the buffer pruning described in RFC 8032, // Section 5.1.5 (also known as clamping) and sets s to the result. The input // must be 32 bytes, and it is not modified. If x is not of the right length, // SetBytesWithClamping returns nil and an error, and the receiver is unchanged. // // Note that since Scalar values are always reduced modulo the prime...