procedure
( sha1bstr)→sha1?
bstr:bytes?

procedure
( sha224bstr)→sha224?
bstr:bytes?

procedure
( sha256bstr)→sha256?
bstr:bytes?

procedure
( sha384bstr)→sha384?
bstr:bytes?

procedure
( sha512bstr)→sha512?
bstr:bytes?

Calculate the SHA hash of bstr.

2HMAC-SHA🔗 i

procedure
( hmac-sha1keydata)→sha1?
key:bytes?
data:bytes?

procedure
( hmac-sha224keydata)→sha224?
key:bytes?
data:bytes?

procedure
( hmac-sha256keydata)→sha256?
key:bytes?
data:bytes?

procedure
( hmac-sha384keydata)→sha384?
key:bytes?
data:bytes?

procedure
( hmac-sha512keydata)→sha512?
key:bytes?
data:bytes?

HMAC-SHA encode key and data.

3Hex string🔗 i

procedure
( bytes->hex-stringbstr)→string?
bstr:bytes?

Convert bstr to a hexadecimal string represention.

4Predicates for contracts🔗 i

procedure
( sha1?x)→boolean?
x:any/c

Is x a bytes? of length 20?

procedure
( sha224?x)→boolean?
x:any/c

Is x a bytes? of length 28?

procedure
( sha256?x)→boolean?
x:any/c

Is x a bytes? of length 32?

procedure
( sha384?x)→boolean?
x:any/c

Is x a bytes? of length 48?

procedure
( sha512?x)→boolean?
x:any/c

Is x a bytes? of length 64?

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