Simple hash

Ported/based on Apache Shiro default hash service.

Features

• SHA-512 algorithm only
• reading data to be hashed from pipe or stdin (prompt)
• configurable iterations, defaults to 1
• generating random salt, if none provided
• providing a private salt
• salt & private salt need to be base64 encoded, when provided
• computed hash is base64 encoded

Build

go build -o hasher ./main.go

Usage

Prompt:

; ./hasher
Data to hash: hello
m3HSJL1i83hdltRq0+o9czGb+8KJDKra4t/3JRlnPKcjI8PZm6XBHXx6zG4UuMXaDEZjR1wuXDre9G9zvN7AQw==

Pipe:

; echo -n "hello" | ./hasher
m3HSJL1i83hdltRq0+o9czGb+8KJDKra4t/3JRlnPKcjI8PZm6XBHXx6zG4UuMXaDEZjR1wuXDre9G9zvN7AQw==

More iterations:

; echo -n "hello" | ./hasher --iterations 1000
Lw0Vk8nYLMBpNeaeTosjDbEkD2Olrnl30ahRc5eJX3JyVExUEGGN7qtvZyDDOzs6c+oERcchJ76IFLtNB/9hbg==

Provide a salt, no random generation:

; echo -n "hello" | ./hasher --salt $(echo -n "my salt" | base64)
Llq3/XC0PWKCZ75IR5gc/wJ2Yxhc+7ijWWdWoBc46lHeMpyimQnWgegmQT9T//uSEmfoCPXBCWziPfbxlO7d8w==

Provide a private salt, extra random salt generated:

; echo -n "hello" | ./hasher --private-salt $(echo -n "my private salt" | base64)
Z1/zSYHgQSRDFLGJHPdFcyGFom9X2DSSvjJYp4w9TSfGa+h6jgbFlnEkaNHu847BlYhnv7jXTAH+Qf02cIh0Yw==

Provide a private salt, no random salt generated:

; echo -n "hello" | ./hasher --private-salt $(echo -n "my private salt" | base64) --salt $(echo -n "my salt" | base64)
YaB1xuISPQpzOVm1PKmx8ixb176/11YsPgX2PrHcqeHgXHG55+DKFGi5mJU3ZrLwbLVLUxLdvvb+jfJbiUKWZw==