You could use the built in java crc32 functionality and implement the missing digest.
https://docs.oracle.com/javase/7/docs/api/java/util/zip/CheckedInputStream.html Sendt fra min iPhone > 12. jan. 2018 kl. 16:31 skrev Dennis van der Laan <d.g.van.der.l...@rug.nl>: > > Hi, > > I made an integration between SSHD and Apache Jackrabbit, so we can upload > content to Jackrabbit through Sftp. > We sync contents with a synchronization client (Beyond Compare - > https://www.scootersoftware.com/) which sends [crc32] as a hash algorithm > to compare the contents of files. > I get a java.lang.IllegalArgumentException: No matching digest factory > found for [crc32]. > In the SftpSubsystem.doCheckFileHash() I found that algorithms are checked > against the BuiltinDigests, and [crc32] is not a builtin digest. What would > be the best way to add a new digest for file hashing? > > Thanks in advance, > Dennis > > -- > D.G. van der Laan, MSc > Sr. Software Engineer, Center for Information Technology > +31 (0)50 363 9273
