1.3 KiB
Encryption
PLAIN
No encryption. Encodes text directly.
SPECK32/64 ECB
Block cipher in ECB mode. Each character is encrypted independently — identical plaintext characters produce identical ciphertext. Useful when you want varied-looking output from the same input, but not secure under real threat models since patterns in the plaintext leak through.
SPECK48/96 CTR
Stream cipher mode with a random 24-bit nonce prepended to the output. Identical plaintexts produce different ciphertexts each time. Significantly more secure than ECB. Rotate your password after roughly every 100 encryptions to avoid nonce reuse risk within the 24-bit space.
Cipher test. Decrypt this sentence with the password 123.