crypto

package
Version: v0.0.4 Latest Latest
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Published: Jun 7, 2021 License: Apache-2.0 Imports: 6 Imported by: 14

Documentation

Index

Examples

Constants

View Source
const (
	// AddressSize is the size of a pubkey address.
	AddressSize = tmhash.TruncatedSize
)
View Source
const Version = "0.9.0-dev"

Variables

This section is empty.

Functions

func CRandBytes

func CRandBytes(numBytes int) []byte

This only uses the OS's randomness

func CRandHex

func CRandHex(numDigits int) string

CRandHex returns a hex encoded string that's floor(numDigits/2) * 2 long.

Note: CRandHex(24) gives 96 bits of randomness that are usually strong enough for most purposes.

func CReader

func CReader() io.Reader

Returns a crand.Reader.

func Sha256

func Sha256(bytes []byte) []byte
Example
package main

import (
	"fmt"

	"github.com/mydexchain/tendermint/crypto"
)

func main() {
	sum := crypto.Sha256([]byte("This is Tendermint"))
	fmt.Printf("%x\n", sum)
}
Output:

f91afb642f3d1c87c17eb01aae5cb65c242dfdbe7cf1066cc260f4ce5d33b94e

Types

type Address

type Address = bytes.HexBytes

An address is a []byte, but hex-encoded even in JSON. []byte leaves us the option to change the address length. Use an alias so Unmarshal methods (with ptr receivers) are available too.

func AddressHash

func AddressHash(bz []byte) Address

type PrivKey

type PrivKey interface {
	Bytes() []byte
	Sign(msg []byte) ([]byte, error)
	PubKey() PubKey
	Equals(PrivKey) bool
	Type() string
}

type PubKey

type PubKey interface {
	Address() Address
	Bytes() []byte
	VerifySignature(msg []byte, sig []byte) bool
	Equals(PubKey) bool
	Type() string
}

type Symmetric

type Symmetric interface {
	Keygen() []byte
	Encrypt(plaintext []byte, secret []byte) (ciphertext []byte)
	Decrypt(ciphertext []byte, secret []byte) (plaintext []byte, err error)
}

Directories

Path Synopsis
Package merkle computes a deterministic minimal height Merkle tree hash.
Package merkle computes a deterministic minimal height Merkle tree hash.
Package xchacha20poly1305 creates an AEAD using hchacha, chacha, and poly1305 This allows for randomized nonces to be used in conjunction with chacha.
Package xchacha20poly1305 creates an AEAD using hchacha, chacha, and poly1305 This allows for randomized nonces to be used in conjunction with chacha.
internal

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