crypto

package
v1.19.0 Latest Latest
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 Go to latest Published: Sep 26, 2023 License: MIT Imports: 2 Imported by: 0

Documentation

Overview

Package crypto collects common cryptographic constants.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func RegisterHash 

func RegisterHash(h Hash, f func() hash.Hash)

RegisterHash registers a function that returns a new instance of the given hash function. This is intended to be called from the init function in packages that implement hash functions.

Types

type Decrypter added in v1.5.0 

type Decrypter interface {
	Public() PublicKey

	Decrypt(rand io.Reader, msg []byte, opts DecrypterOpts) (plaintext []byte, err error)
}

Decrypter is an interface for an opaque private key that can be used for asymmetric decryption operations. An example would be an RSA key kept in a hardware module.

type DecrypterOpts added in v1.5.0 

type DecrypterOpts any

type Hash 

type Hash uint

Hash identifies a cryptographic hash function that is implemented in another package. 

const (
	MD4 Hash = 1 + iota
	MD5
	SHA1
	SHA224
	SHA256
	SHA384
	SHA512
	MD5SHA1
	RIPEMD160
	SHA3_224
	SHA3_256
	SHA3_384
	SHA3_512
	SHA512_224
	SHA512_256
	BLAKE2s_256
	BLAKE2b_256
	BLAKE2b_384
	BLAKE2b_512
)

func (Hash) Available 

func (h Hash) Available() bool

Available reports whether the given hash function is linked into the binary.

func (Hash) HashFunc added in v1.4.0 

func (h Hash) HashFunc() Hash

HashFunc simply returns the value of h so that Hash implements SignerOpts.

func (Hash) New 

func (h Hash) New() hash.Hash

New returns a new hash.Hash calculating the given hash function. New panics if the hash function is not linked into the binary.

func (Hash) Size 

func (h Hash) Size() int

Size returns the length, in bytes, of a digest resulting from the given hash function. It doesn't require that the hash function in question be linked into the program.

func (Hash) String added in v1.15.0 

func (h Hash) String() string

type PrivateKey 

type PrivateKey any

PrivateKey represents a private key using an unspecified algorithm.

Although this type is an empty interface for backwards compatibility reasons, all private key types in the standard library implement the following interface 

interface{
    Public() crypto.PublicKey
    Equal(x crypto.PrivateKey) bool
}

as well as purpose-specific interfaces such as Signer and Decrypter, which can be used for increased type safety within applications.

type PublicKey added in v1.2.0 

type PublicKey any

PublicKey represents a public key using an unspecified algorithm.

Although this type is an empty interface for backwards compatibility reasons, all public key types in the standard library implement the following interface 

interface{
    Equal(x crypto.PublicKey) bool
}

which can be used for increased type safety within applications.

type Signer added in v1.4.0 

type Signer interface {
	Public() PublicKey

	Sign(rand io.Reader, digest []byte, opts SignerOpts) (signature []byte, err error)
}

Signer is an interface for an opaque private key that can be used for signing operations. For example, an RSA key kept in a hardware module.

type SignerOpts added in v1.4.0 

type SignerOpts interface {
	HashFunc() Hash
}

SignerOpts contains options for signing with a Signer.

Source Files

View all Source files

Directories

Path Synopsis
Package aes implements AES encryption (formerly Rijndael), as defined in U.S. Federal Information Processing Standards Publication 197.
 Package aes implements AES encryption (formerly Rijndael), as defined in U.S. Federal Information Processing Standards Publication 197.
Package cipher implements standard block cipher modes that can be wrapped around low-level block cipher implementations.
 Package cipher implements standard block cipher modes that can be wrapped around low-level block cipher implementations.
Package des implements the Data Encryption Standard (DES) and the Triple Data Encryption Algorithm (TDEA) as defined in U.S. Federal Information Processing Standards Publication 46-3.
 Package des implements the Data Encryption Standard (DES) and the Triple Data Encryption Algorithm (TDEA) as defined in U.S. Federal Information Processing Standards Publication 46-3.
Package dsa implements the Digital Signature Algorithm, as defined in FIPS 186-3.
 Package dsa implements the Digital Signature Algorithm, as defined in FIPS 186-3.
Package ecdsa implements the Elliptic Curve Digital Signature Algorithm, as defined in FIPS 186-4 and SEC 1, Version 2.0.
 Package ecdsa implements the Elliptic Curve Digital Signature Algorithm, as defined in FIPS 186-4 and SEC 1, Version 2.0.
Package ed25519 implements the Ed25519 signature algorithm.
 Package ed25519 implements the Ed25519 signature algorithm.
Package elliptic implements the standard NIST P-224, P-256, P-384, and P-521 elliptic curves over prime fields.
 Package elliptic implements the standard NIST P-224, P-256, P-384, and P-521 elliptic curves over prime fields.
Package hmac implements the Keyed-Hash Message Authentication Code (HMAC) as defined in U.S. Federal Information Processing Standards Publication 198.
 Package hmac implements the Keyed-Hash Message Authentication Code (HMAC) as defined in U.S. Federal Information Processing Standards Publication 198.
Package md5 implements the MD5 hash algorithm as defined in RFC 1321.
 Package md5 implements the MD5 hash algorithm as defined in RFC 1321.
Package rand implements a cryptographically secure random number generator.
 Package rand implements a cryptographically secure random number generator.
Package rc4 implements RC4 encryption, as defined in Bruce Schneier's Applied Cryptography.
 Package rc4 implements RC4 encryption, as defined in Bruce Schneier's Applied Cryptography.
Package rsa implements RSA encryption as specified in PKCS #1 and RFC 8017.
 Package rsa implements RSA encryption as specified in PKCS #1 and RFC 8017.
Package sha1 implements the SHA-1 hash algorithm as defined in RFC 3174.
 Package sha1 implements the SHA-1 hash algorithm as defined in RFC 3174.
Package sha256 implements the SHA224 and SHA256 hash algorithms as defined in FIPS 180-4.
 Package sha256 implements the SHA224 and SHA256 hash algorithms as defined in FIPS 180-4.
Package sha512 implements the SHA-384, SHA-512, SHA-512/224, and SHA-512/256 hash algorithms as defined in FIPS 180-4.
 Package sha512 implements the SHA-384, SHA-512, SHA-512/224, and SHA-512/256 hash algorithms as defined in FIPS 180-4.
Package subtle implements functions that are often useful in cryptographic code but require careful thought to use correctly.
 Package subtle implements functions that are often useful in cryptographic code but require careful thought to use correctly.
Package tls partially implements TLS 1.2, as specified in RFC 5246, and TLS 1.3, as specified in RFC 8446.
 Package tls partially implements TLS 1.2, as specified in RFC 5246, and TLS 1.3, as specified in RFC 8446.
pkix
Package pkix contains shared, low level structures used for ASN.1 parsing and serialization of X.509 certificates, CRL and OCSP.
 Package pkix contains shared, low level structures used for ASN.1 parsing and serialization of X.509 certificates, CRL and OCSP.

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