hashLength := hex.DecodedLen(len(hash))
	if hashLength != sha256.Size {
		return errors.Errorf("expected a %d byte SHA-256 hash, found %d bytes", sha256.Size, hashLength)
	}

	// validate that the hash is valid hex
	_, err := hex.DecodeString(hash)
	if err != nil {
		return errors.Wrap(err, "could not decode SHA-256 from hex")
	}

func dumpregs(c *sigctxt) {
	print("r0   ", hex(c.r0()), "\t")
	print("r1   ", hex(c.r1()), "\n")
	print("r2   ", hex(c.r2()), "\t")
	print("r3   ", hex(c.r3()), "\n")
	print("r4   ", hex(c.r4()), "\t")
	print("r5   ", hex(c.r5()), "\n")
	print("r6   ", hex(c.r6()), "\t")
	print("r7   ", hex(c.r7()), "\n")
	print("r8   ", hex(c.r8()), "\t")
	print("r9   ", hex(c.r9()), "\n")
	print("r10  ", hex(c.r10()), "\t")

func TestCFBVectors(t *testing.T) {
	for i, test := range cfbTests {
		key, err := hex.DecodeString(test.key)
		if err != nil {
			t.Fatal(err)
		}
		iv, err := hex.DecodeString(test.iv)
		if err != nil {
			t.Fatal(err)
		}
		plaintext, err := hex.DecodeString(test.plaintext)
		if err != nil {
			t.Fatal(err)
		}
		expected, err := hex.DecodeString(test.ciphertext)
		if err != nil {
			t.Fatal(err)
		}

// along with this program.  If not, see <http://www.gnu.org/licenses/>.

package cmd

import (
	"crypto/md5"
	"encoding/hex"

	"github.com/minio/minio/internal/hash/sha256"
)

// getSHA256Hash returns SHA-256 hash in hex encoding of given data.
func getSHA256Hash(data []byte) string {
	return hex.EncodeToString(getSHA256Sum(data))
}

// getSHA256Hash returns SHA-256 sum of given data.
func getSHA256Sum(data []byte) []byte {

				}
			}()
		}
		wg.Wait()
	}
}

func bigFromHex(hex string) *big.Int {
	n, ok := new(big.Int).SetString(hex, 16)
	if !ok {
		panic("bad hex: " + hex)
	}
	return n
}

func fromHex(hexStr string) []byte {
	s, err := hex.DecodeString(hexStr)
	if err != nil {
		panic(err)
	}
	return s

// 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 tls

import (
	"encoding/hex"
	"testing"
)

func TestDecodeECHConfigLists(t *testing.T) {
	for _, tc := range []struct {
		list       string
		numConfigs int
	}{

			n++
		}
	}

	// quick exit
	if n == 0 {
		return s
	}

	// escape
	const hex = "0123456789abcdef"
	p := make([]byte, 0, len(s)+2*n)
	for r := 0; r < len(s); r++ {
		if c := s[r]; c <= ' ' || (c == '.' && r > slash) || c == '%' || c == '"' || c >= 0x7F {
			p = append(p, '%', hex[c>>4], hex[c&0xF])
		} else {
			p = append(p, c)
		}
	}

	return string(p)
}

    def "conversion is symmetrical"() {
        expect:
        key("ABCDABCD").asHex == "ABCDABCD"
    }

    def "conversion"() {
        expect:
        key(hex).asLong == decimal
        key(decimal).asHex == hex

        where:
        hex        | decimal
        "AAAAAAAA" | 2863311530
        "DA124B92" | 3658632082
    }

    def "equals impl"() {
        expect:

  force-pseudo-nesting: 0
  function-name-format: 2
  hex-length: 0
  hex-notation: 2
  id-name-format: 2
  indentation:
    - 2
    -
      size: 4
  leading-zero:
    - 2
    -
      include: false
  max-file-line-count: 0
  max-file-length: 0
  mixins-before-declarations: 2
  no-attribute-selectors: 0
  no-color-hex: 0
  no-color-keywords: 0
  no-color-literals: 0
  no-combinators: 0

				j++
			}
			r := hexDecode(s[1:j])
			if r > unicode.MaxRune {
				r, j = r/16, j-1
			}
			n := utf8.EncodeRune(b[len(b):cap(b)], r)
			// The optional space at the end allows a hex
			// sequence to be followed by a literal hex.
			// string(decodeCSS([]byte(`\A B`))) == "\nB"
			b, s = b[:len(b)+n], skipCSSSpace(s[j:])
		} else {
			// `\\` decodes to `\` and `\"` to `"`.
			_, n := utf8.DecodeRune(s[1:])