decrypt

Good day, I've worked with decoding DMR using DSDPlus 1.074 , I have got encrypted output (Enc Group call) and information about it such as (Source, ID, Key and algorithm) . I need software that could decrypt the decoded DMR voice. Thank you

Ok, I live in Garfield County WA. Pomeroy WA. They decided to encrypt all data over radio. 1. Is it illegal for me to decrypt it ? 2. Is it illegal for me to stream decrypted audio ? 3. Is it illegal for me to record decrypted audio and put it on Youtube in WA State ?