AsymmetricEncrypt

PowerScript function

Description

Encrypts a blob value with asymmetric algorithm.

Applies to

CrypterObject objects

Syntax

crypter.AsymmetricEncrypt ( algorithm, variable, pubKey)

1	crypter.AsymmetricEncrypt ( algorithm, variable, pubKey)

Argument	Description
crypter	The name of the CrypterObject object
algorithm	A value of the AsymmetricAlgorithm enumerated type that specifies the type of asymmetric algorithm. Values are: RSA! – The Rivest-Shamir-Adleman cryptopsystem Rabin! – The Rabin Algorithm Note: DSA! is designed to be used in signature, not in encryption and decryption.
variable	A blob whose value is the data you want to encrypt with Public-Key cipher. When using the system blob function to convert a string to a blob, it is recommended to specify its encoding argument to be EncodingANSI! (for English characters only) or EncodingUTF8!, otherwise, the default EncodingUTF16LE! will be used.
pubKey	A blob specifying the public key. Note: A 512-bit pubKey can encrypt a variable of up to 22 bytes; a 1024-bit pubKey can encrypt a variable of up to 86 bytes; A 2048-bit pubKey can encrypt a variable of up to 214 bytes.

Return value

Blob. Returns the result of the encryption if it succeeds. If any
argument’s value is null, the method returns null. If an error occurs,
throw the exception.

Examples

This statement encrypts the data using RSA and then returns the
encrypted data.

Blob lblb_data
Blob lblb_privKey
Blob lblb_pubKey
Blob lblb_encrypt

lblb_data = Blob("Test Rsa", EncodingANSI!)

CrypterObject lnv_CrypterObject
lnv_CrypterObject = Create CrypterObject

// Generate the private key
lnv_CrypterObject.AsymmetricGenerateKey(RSA!, 1024, lblb_privKey, lblb_pubKey)

// Encrypt data using RSA
lblb_encrypt = lnv_CrypterObject.AsymmetricEncrypt(RSA!, lblb_data, lblb_pubKey)