Available in all subroutines.

Returns an MD5 hash for the string s. MD5 is not considered a secure cryptographic hash.


declare local var.hash_md5 STRING;
set var.hash_md5 = digest.hash_md5("123456789");
# var.hash_md5 is now "25f9e794323b453885f5181f1b624d0b"

Try it out

digest.hash_md5 is used in the following solution recipes. Recipes apply VCL to real-world use cases and can be deployed as-is, or adapted for your own service. See the full list of recipesfor more inspiration.

Click RUN on a sample below to provision a Fastly service, execute the code on Fastly, and see how the function behaves.

Check validity of inputs using a non-crypto hash

Block or identify syntactically invalid requests at the edge by using a hash function of your choice.

User contributed notes

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