From 754bbf7a25a8dda49b5d08ef0d0443bbf5af0e36 Mon Sep 17 00:00:00 2001 From: Craig Jennings Date: Sun, 7 Apr 2024 13:41:34 -0500 Subject: new repository --- devdocs/go/crypto%2Fsha1%2Findex.html | 42 +++++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 devdocs/go/crypto%2Fsha1%2Findex.html (limited to 'devdocs/go/crypto%2Fsha1%2Findex.html') diff --git a/devdocs/go/crypto%2Fsha1%2Findex.html b/devdocs/go/crypto%2Fsha1%2Findex.html new file mode 100644 index 00000000..0173cd7a --- /dev/null +++ b/devdocs/go/crypto%2Fsha1%2Findex.html @@ -0,0 +1,42 @@ +

Package sha1

import "crypto/sha1"
Overview
Index
Examples

Overview

Package sha1 implements the SHA-1 hash algorithm as defined in RFC 3174.

SHA-1 is cryptographically broken and should not be used for secure applications.

Examples

New

New (File)

Sum

Package files

sha1.go sha1block.go sha1block_amd64.go

Constants

The blocksize of SHA-1 in bytes.

const BlockSize = 64

The size of a SHA-1 checksum in bytes.

const Size = 20

func New

func New() hash.Hash

New returns a new hash.Hash computing the SHA1 checksum. The Hash also implements encoding.BinaryMarshaler and encoding.BinaryUnmarshaler to marshal and unmarshal the internal state of the hash.

Example +

Code:

h := sha1.New()
+io.WriteString(h, "His money is twice tainted:")
+io.WriteString(h, " 'taint yours and 'taint mine.")
+fmt.Printf("% x", h.Sum(nil))
+

Output:

59 7f 6a 54 00 10 f9 4c 15 d7 18 06 a9 9a 2c 87 10 e7 47 bd
+

Example (File) +

Code:

+f, err := os.Open("file.txt")
+if err != nil {
+    log.Fatal(err)
+}
+defer f.Close()
+
+h := sha1.New()
+if _, err := io.Copy(h, f); err != nil {
+    log.Fatal(err)
+}
+
+fmt.Printf("% x", h.Sum(nil))
+

func Sum 1.2

func Sum(data []byte) [Size]byte

Sum returns the SHA-1 checksum of the data.

Example +

Code:

data := []byte("This page intentionally left blank.")
+fmt.Printf("% x", sha1.Sum(data))
+

Output:

af 06 49 23 bb f2 30 15 96 aa c4 c2 73 ba 32 17 8e bc 4a 96
+

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