Source File
	cast.go

Belonging Package
	crypto/internal/fips140/sha256

// Copyright 2024 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.

package sha256

import (
	"bytes"
	"crypto/internal/fips140"
	"errors"
)

func init() {
	fips140.CAST("SHA2-256", func() error {
		input := []byte{
			0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08,
			0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 0x10,
		}
		want := []byte{
			0x5d, 0xfb, 0xab, 0xee, 0xdf, 0x31, 0x8b, 0xf3,
			0x3c, 0x09, 0x27, 0xc4, 0x3d, 0x76, 0x30, 0xf5,
			0x1b, 0x82, 0xf3, 0x51, 0x74, 0x03, 0x01, 0x35,
			0x4f, 0xa3, 0xd7, 0xfc, 0x51, 0xf0, 0x13, 0x2e,
		}
		h := New()
		h.Write(input)
		if got := h.Sum(nil); !bytes.Equal(got, want) {
			return errors.New("unexpected result")
		}
		return nil
	})
}

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