common_features "istio.io/istio/pkg/features"
	"istio.io/istio/pkg/log"
)

var fipsCiphers = []string{
	"ECDHE-ECDSA-AES128-GCM-SHA256",
	"ECDHE-RSA-AES128-GCM-SHA256",
	"ECDHE-ECDSA-AES256-GCM-SHA384",
	"ECDHE-RSA-AES256-GCM-SHA384",
}

var fipsGoCiphers = []uint16{
	gotls.TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
	gotls.TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,
	gotls.TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,

import (
	"crypto/cipher"
	"crypto/internal/alias"
	"internal/cpu"
)

type code int

// Function codes for the cipher message family of instructions.
const (
	aes128 code = 18
	aes192      = 19
	aes256      = 20
)

type aesCipherAsm struct {
	function code     // code for cipher message instruction
	key      []byte   // key (128, 192 or 256 bits)
	storage  [32]byte // array backing key slice
}

TEXT ·encryptBlockAsm(SB),NOSPLIT,$0
	MOVD	nr+0(FP), R9
	MOVD	xk+8(FP), R10
	MOVD	dst+16(FP), R11
	MOVD	src+24(FP), R12

	VLD1	(R12), [V0.B16]

	CMP	$12, R9
	BLT	enc128
	BEQ	enc196
enc256:
	VLD1.P	32(R10), [V1.B16, V2.B16]
	AESE	V1.B16, V0.B16
	AESMC	V0.B16, V0.B16
	AESE	V2.B16, V0.B16
	AESMC	V0.B16, V0.B16
enc196:
	VLD1.P	32(R10), [V3.B16, V4.B16]
	AESE	V3.B16, V0.B16
	AESMC	V0.B16, V0.B16

// state of the hash.
func New() hash.Hash {
	if boring.Enabled {
		return boring.NewSHA256()
	}
	d := new(digest)
	d.Reset()
	return d
}

// New224 returns a new hash.Hash computing the SHA224 checksum.
func New224() hash.Hash {
	if boring.Enabled {
		return boring.NewSHA224()
	}
	d := new(digest)
	d.is224 = true
	d.Reset()
	return d
}

func (d *digest) Size() int {

Roland Shoemaker <******@****.***> 1715710936 -0700

	{URL: &url.URL{}, Header: http.Header{xhttp.AmzServerSideEncryptionCustomerAlgorithm: []string{"AES256"}}, IsTLS: false, ShouldFail: true}, // 1
	{URL: &url.URL{}, Header: http.Header{xhttp.AmzServerSideEncryptionCustomerAlgorithm: []string{"AES256"}}, IsTLS: true, ShouldFail: false}, // 2

		// Limit the TLSv1.2 ciphers in google_grpc client in Envoy to the compliant ciphers.
		cmd.Env = append(cmd.Env,
			"GRPC_SSL_CIPHER_SUITES=ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384")
	}
	cmd.Stdout = os.Stdout
	cmd.Stderr = os.Stderr
	if e.AgentIsRoot {
		cmd.SysProcAttr = &syscall.SysProcAttr{}
		cmd.SysProcAttr.Credential = &syscall.Credential{
			Uid: 1337,

Roland Shoemaker <******@****.***> 1715710936 -0700

```

`--sftp=cipher-algos=...` specifies the allowed cipher algorithms. 
If unspecified then a sensible default is used.

Valid values: 
```
aes128-ctr
aes192-ctr
aes256-ctr
******@****.***
aes256******@****.***
******@****.***
arcfour256
arcfour128
arcfour
aes128-cbc
3des-cbc
```

	kexAlgoCurve25519SHA256LibSSH = "******@****.***"
	kexAlgoCurve25519SHA256       = "curve25519-sha256"

	chacha20Poly1305ID = "******@****.***"
	gcm256CipherID     = "aes256******@****.***"
	aes128cbcID        = "aes128-cbc"
	tripledescbcID     = "3des-cbc"
)

var (
	errSFTPPublicKeyBadFormat = errors.New("the public key provided could not be parsed")