39 lines
925 B
Go
39 lines
925 B
Go
package cryptomap
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import (
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"crypto"
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"log"
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"strings"
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// Importing all the currently supported hashes
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_ "crypto/md5"
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_ "crypto/sha1"
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_ "crypto/sha256"
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_ "crypto/sha512"
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)
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// DefaultCipher is the crypto cipher default used if none is specified or
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// specified is unknown.
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var DefaultCipher = "sha1"
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// Ciphers is the known set of mappings for string to crypto.Hash
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// use an init() to add custom hash ciphers
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var Ciphers = map[string]crypto.Hash{
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"md5": crypto.MD5,
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"sha1": crypto.SHA1,
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"sha224": crypto.SHA224,
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"sha256": crypto.SHA256,
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"sha384": crypto.SHA384,
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"sha512": crypto.SHA512,
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}
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// DetermineHash takes a generic string, like "sha1" and returns the
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// corresponding crypto.Hash
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func DetermineHash(str string) (h crypto.Hash) {
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if h, ok := Ciphers[strings.ToLower(str)]; ok {
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return h
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}
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log.Printf("WARNING: unknown cipher %q. using %q", str, DefaultCipher)
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return Ciphers[DefaultCipher]
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}
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