| CRACK | Challenge Response Authentication Cryptographic Key 
| Others |
| CRACK | Challenge Response Authentication of Cryptographic Keys
| Others |
| CRACK | Challenge Response for Authenticated Crypto Keys
| Others |
| CRACK | Challenge Response for Authenticated Cryptographic Keys
| Others |
| CRACK | Children Requiring A Caring Kommunity
| Others |
| CRACK | Chill Rhymes And Cold Kool
| Others |
| CRACK | Collaborative Representative Authorized Committed and Knowledgeable
| Others |
| CRACK | Colon Recontruction Applying Circulatory Kare
| Others |
| CRACK | Consultant Reasoning About Cracking Knowledge
| Others |
| CRACK | Crazy Racoons Ascertaining Corrupted Kernels
| Others |