I came across cipher suites without hashing algorithm, when inspecting the mbedTLS (previously Polar SSL) TLS cipher suite list.
- TLS-DHE-RSA-WITH-AES-128-CCM-8 (OpenSSL: DHE-RSA-AES128-CCM8)
- TLS-DHE-RSA-WITH-AES-256-CCM-8 (OpenSSL: DHE-RSA-AES256-CCM8)
As stated in other questions, the hashing algorithm has applications in TLS, even with AEAD ciphers/modes of operation.
How do these TLS cipher suites work without hashing algorithm and how do they compare to their counterparts with a hashing algorithm, considering the security?