A rainbow table is a precomputed table for reversing cryptographic hash functions, usually for cracking password hashes. Tables are usually used in recovering a plaintext password up to a certain length consisting of a limited set of characters. It is a practical example of a space/time trade-off, using less computer processing time and more storage than a brute-force attack which calculates a hash on every attempt, but more processing time and less storage than a simple lookup table with one entry per hash. Use of a key derivation function that employs a salt makes this attack infeasible.
Precomputed rainbowtables distributed by OpenMPI.
Hash Functions:
NTLM,MD5,SHA1
Some charset:
alpha = [ABCDEFGHIJKLMNOPQRSTUVWXYZ] alpha-numeric = [ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789] alpha-numeric-symbol14 = [ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^&()-_+=] all = [ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789!@#$%^&()-_+=~`[]{}|:;"'<>,.?/]
numeric = [0123456789] loweralpha = [abcdefghijklmnopqrstuvwxyz] loweralpha-numeric = [abcdefghijklmnopqrstuvwxyz0123456789]
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