cipheriv decrypt

This block is part of the crypto group and was last modified in core v10.4.28.

cipheriv decrypt condition v10.4.28

decrypting data

In pins 4

algorithm
value
The algorithm to use
Default aes-192-cbc
key required
value
The key used to encrypt (mostly scrypt output)
data required
value
The data to be decrypted
auth tag required
value
The auth tag used during the encryption

Out pins 3

success
condition
decrypted
value
The decrypted plaintext
error
value
If an error occured, this pin is filled

Decrypts the versioned HEX envelope produced by value_cipher_encrypt and authenticates it before returning plaintext. Legacy fixed-IV CBC/GCM ciphertext remains readable during migration; auth_tag is used only for legacy GCM. key and data must be hex. On failure success is false and output is not written.

A typical wiring for cipheriv decrypt: value feeds the key pin; value feeds the data pin; value feeds the auth_tag pin; the success out pin feeds branch.

Version history

Introduced in v10.4.28.

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