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RSA.Verify
Verifies RSA digital signature.
Component | Version | macOS | Windows | Linux | Server | iOS SDK |
Sign Encryption | 6.2 | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes | ✅ Yes |
Parameters
Parameter | Description | Example | Flags |
---|---|---|---|
Algorithm | Which algorithm to use. Can be MD4, MD5, SHA, SHA1, MDC2, RIPEMD160, SHA224, SHA256, SHA384 or SHA512. | "SHA512" | |
InputType | The type of input data. Can be Text, Container, Image, Path, PDF, Data, base64 or Hex. |
"Text" | |
InputData | The actual input data. Text, container or file path. |
"Hello World" | |
InputEncoding | The text encoding for text input. Parameter is ignored for other cases. |
"UTF-8" | |
KeyType | The type of input for private or public key. Can be Text, Container, Image, Path, PDF, Data, base64 or Hex. |
"Text" | |
KeyData | The actual input data for the key. Text, container or file path. Must not be longer than the maximum key length of the given algorithm. If key is too short, we pad it with zero bytes. |
"Hello World" | |
KeyEncoding | The text encoding for text input for the key. Parameter is ignored for other cases. |
"UTF-8" | |
SigType | The type of input data for signature. Can be Text, Container, Image, Path, PDF, Data, base64 or Hex. |
"Text" | |
SigData | The actual input data for signature. Text, container or file path. |
"Hello World" | |
SigEncoding | The text encoding for text input. Parameter is ignored for other cases. |
"UTF-8" | |
PasswordType | The type of input for the password of the private key. Can be Text, Container, Image, Path, PDF, Data, base64 or Hex. |
"Text" | Optional |
PasswordData | The actual input data for the password of the private key. Text, container or file path. Must not be longer than the maximum key length of the given algorithm. If key is too short, we pad it with zero bytes. |
"Hello World" | Optional |
PasswordEncoding | The text encoding for text input. Parameter is ignored for other cases. |
"UTF-8" | Optional |
Result
Returns 1, 0 or error.
Description
Verifies RSA digital signature.Returns 1 if signature is valid or 0 if not or an error if parameters are wrong.
Key can be the public or private key, but of course normally you use the public key.
A hash is created with given algorithm and verified with the signature.
Signature must be the string returned like from RSA.Sign function.
Optional you can pass a password to read password protected keys.
Examples
Verify with all data in files:
MBS( "RSA.Verify";
"SHA1";
"Path"; "/Users/cs/Desktop/Sign and Verify/Create Keys.rtf"; "";
"Path"; "/Users/cs/Desktop/Sign and Verify/test.pub"; "";
"Path"; "/Users/cs/Desktop/Sign and Verify/signature.sha1"; "";
"Text"; ""; "" )
Verify with passing signature as hex text:
MBS( "RSA.Verify";
"SHA512";
"Text"; "Hello World. This is test data to sign."; "UTF8";
"Path"; "/Users/cs/Desktop/Sign and Verify/test.pub"; "";
"Hex"; "CD603612768BD33F2C0C0DE1E71658F9191..."; "";
"Text"; ""; "" )
Verify some text:
Set Variable [$r; Value:MBS( "RSA.Verify"; Table::Algorithm; "Text"; Table::Text to Sign; "UTF8"; "Text"; Table::PublicKey; "UTF8"; "Hex"; Table::Signature )]
If [$r = 1]
Show Custom Dialog ["Signature valid"]
Else If [$r = 0]
Show Custom Dialog ["Signature invalid"]
Else
Show Custom Dialog ["Error"; MBS("Text.RemovePrefix"; $r; "[MBS] ")]
End If
See also
Release notes
- Version 14.6
- Fixed RSA.Verify function to work better reading private key.
- Version 10.0
- Improved error messages for RSA.GeneratePrivateKey, RSA.Verify, RSA.Sign.
Example Databases
Blog Entries
- MBS FileMaker Plugin, version 14.6pr1
- MBS FileMaker Plugin, version 10.0pr5
- MBS FileMaker Plugin, version 6.2pr1
This function checks for a license.
Created 12nd March 2016, last changed 15th April 2024