Monkeybread Software - MBS FileMaker Plugin: Hash.SHA512

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Hash.SHA512

Calculated SHA-512 hash of given text.

Component	Version	macOS	Windows	Linux	Server	iOS SDK
Hash	2.7	✅ Yes	✅ Yes	✅ Yes	✅ Yes	✅ Yes

MBS( "Hash.SHA512"; text { ; Flags } ) More

Parameters

Parameter Description Example Flags

text The text to process. "Hello World"

Flags Various flags you can combine by addition.
Pass 1 for getting result Base64 encoded instead of Hex encoded.
Pass 2 if input data is Hex encoded and plugin should decode it first.
Pass 8 for base64URL encoding. (new in v10.3) 0 Optional

Parameter	Description	Example	Flags
text	The text to process.	"Hello World"
Flags	Various flags you can combine by addition. Pass 1 for getting result Base64 encoded instead of Hex encoded. Pass 2 if input data is Hex encoded and plugin should decode it first. Pass 8 for base64URL encoding. (new in v10.3)	0	Optional

Result

Returns SHA-512 hash.

Description

Calculated SHA-512 hash of given text.
Text is converted to UTF-8 to make sure the text encoding doesn't change the hash value.
Hashes are used to store a fingerprint of some data. When hashes are not equal, the data is probably also not equal.
This function is good to make hashes for passwords. You don't save the password in your database, but only the hash. On login, you calculate the hash for the password entered by the user and compare the hash with the stored one. This way the database only contains hashes. And it's unlikely someone finds the password given the hash, except for easy cases like "hello" where google will tell you the text for the hash.
To make hashes more secure, use a prefix/suffix like the user id or simply your application name. This way even hello as a password will be quite impossible to recover from the hash.
SHA-512 is stronger than MD5.

Please be aware that text can result in different hashes if it contains line endings. You may want to make sure that line endings are right with the Text.ReplaceNewline function before you compare hashes to results in other development tools. FileMaker uses Mac line endings by default and most examples for Javascript use Unix line endings.