How to determine the encryption algorithm?

Question

Encryption

There are pairs of encrypted - not encrypted text.
The encrypted data is not long (names).
They are accessed very often, decrypted on each access, so there should be something simple and quick.
Tell me which way to look?
(Perhaps the first letters of the largest in the decrypted text)
C36A852C3B8A64 - starter
3DBEC74FE62EAE9D0A - thermostat
9DC457C7A93BBF24EF - generator
16E5134A216E00ED - radiator
55DBA22B63 - hood
87CB580D63 - roof
2988A7D6B899 - panel
4E993414EA2627EF - tachometer
5CF1556079 - radio
F62272AAAF76 - Earring
4DCB982AABA90F - flywheel

Answer 1

At first glance: the number of bytes corresponds to the length of the string, ie:
C3 | 6A | 85 | 2c | 3b | 8A | 64
-----------------------------------
with | t | a | p | t | e | p
More like a hash function, perhaps Pearson's algorithm for variable length strings.