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minor: add _hmac function

pull/373/head
neilpang 8 years ago
parent
commit
b001840dee
  1. 25
      acme.sh

25
acme.sh

@ -436,6 +436,31 @@ _digest() {
}
#Usage: hashalg secret [outputhex]
#Output Base64-encoded hmac
_hmac() {
alg="$1"
hmac_sec="$2"
outputhex="$3"
if [ -z "$hmac_sec" ] ; then
_usage "Usage: _hmac hashalg secret [outputhex]"
return 1
fi
if [ "$alg" = "sha256" ] || [ "$alg" = "sha1" ]; then
if [ "$outputhex" ] ; then
openssl dgst -$alg -hmac "$hmac_sec" | cut -d = -f 2 | tr -d ' '
else
openssl dgst -$alg -hmac "$hmac_sec" -binary | _base64
fi
else
_err "$alg is not supported yet"
return 1
fi
}
#Usage: keyfile hashalg
#Output: Base64-encoded signature value
_sign() {

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