package sha256

Import Path
	crypto/sha256 (on golang.org and go.dev)

Dependency Relation
	imports 6 packages, and imported by 2 packages

Involved Source Files Package sha256 implements the SHA224 and SHA256 hash algorithms as defined in FIPS 180-4. sha256block.go sha256block_amd64.go sha256block_decl.go sha256block_amd64.s
Code Examples package main import ( "crypto/sha256" "fmt" ) func main() { h := sha256.New() h.Write([]byte("hello world\n")) fmt.Printf("%x", h.Sum(nil)) } package main import ( "crypto/sha256" "fmt" "io" "log" "os" ) func main() { f, err := os.Open("file.txt") if err != nil { log.Fatal(err) } defer f.Close() h := sha256.New() if _, err := io.Copy(h, f); err != nil { log.Fatal(err) } fmt.Printf("%x", h.Sum(nil)) } package main import ( "crypto/sha256" "fmt" ) func main() { sum := sha256.Sum256([]byte("hello world\n")) fmt.Printf("%x", sum) }
Package-Level Functions (total 4)
New returns a new hash.Hash computing the SHA256 checksum. The Hash also implements encoding.BinaryMarshaler and encoding.BinaryUnmarshaler to marshal and unmarshal the internal state of the hash.
New224 returns a new hash.Hash computing the SHA224 checksum.
Sum224 returns the SHA224 checksum of the data.
Sum256 returns the SHA256 checksum of the data.
Package-Level Constants (total 3)
The blocksize of SHA256 and SHA224 in bytes.
The size of a SHA256 checksum in bytes.
The size of a SHA224 checksum in bytes.