python3-otr: python3-otr (Python otr implementation) python3-otr: python3-otr: python library for Cypherpunks OTR messenger protocol python3-otr: python3-otr: Off-The-Record Messaging (OTR) is a cryptographic protocol that python3-otr: provides encryption for instant messaging conversations. OTR uses a python3-otr: combination of AES symmetric-key algorithm with 128 bits key python3-otr: length, the Diffie-Hellman key exchange with 1536 bits group size, python3-otr: and the SHA-1/SHA-256 hash functions. python3-otr: python3-otr: