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key.clj
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key.clj
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(ns clj-jwt.key
(:require
[clojure.java.io :as io])
(:import
[org.bouncycastle.openssl PEMParser PEMKeyPair PEMEncryptedKeyPair]
[org.bouncycastle.openssl.jcajce JcaPEMKeyConverter JcePEMDecryptorProviderBuilder]
[org.bouncycastle.asn1.pkcs PrivateKeyInfo]
[org.bouncycastle.asn1.x509 SubjectPublicKeyInfo]
[org.bouncycastle.cert X509CertificateHolder]
[java.io StringReader]))
(defprotocol GetPrivateKey
(-get-private-key [key-info password]))
(defprotocol GetPublicKey
(-get-public-key [key-info password]))
(defn ^JcaPEMKeyConverter pem-converter
[]
(JcaPEMKeyConverter.))
(extend-protocol GetPrivateKey
PrivateKeyInfo
(-get-private-key
[key-info _]
(.getPrivateKey (pem-converter) key-info)))
(extend-protocol GetPublicKey
SubjectPublicKeyInfo
(-get-public-key
[key-info _]
(.getPublicKey (pem-converter) key-info))
X509CertificateHolder
(-get-public-key
[key-info password]
(-get-public-key (.getSubjectPublicKeyInfo key-info) password)))
(extend-type PEMKeyPair
GetPrivateKey
(-get-private-key
[key-info _]
(-> (pem-converter)
(.getKeyPair key-info)
.getPrivate))
GetPublicKey
(-get-public-key
[key-info _]
(-> (pem-converter)
(.getKeyPair key-info)
.getPublic)))
(extend-type PEMEncryptedKeyPair
GetPrivateKey
(-get-private-key
[key-info ^String password]
(let [dec-prov (-> (JcePEMDecryptorProviderBuilder.)
(.build (.toCharArray password)))]
(-get-private-key (-> key-info
(.decryptKeyPair dec-prov)) nil)))
GetPublicKey
(-get-public-key
[key-info ^String password]
(let [dec-prov (-> (JcePEMDecryptorProviderBuilder.)
(.build (.toCharArray password)))]
(-get-public-key (-> key-info
(.decryptKeyPair dec-prov)) nil))))
(defn pem->public-key
[reader pass-phrase]
(some-> reader
PEMParser.
.readObject
(-get-public-key pass-phrase)))
(defn pem->private-key
[reader pass-phrase]
(some-> reader
PEMParser.
.readObject
(-get-private-key pass-phrase)))
(defn private-key
[filename & [pass-phrase]]
(with-open [r (io/reader filename)]
(pem->private-key r pass-phrase)))
(defn public-key
[filename & [pass-phrase]]
(with-open [r (io/reader filename)]
(pem->public-key r pass-phrase)))
(defn public-key-from-string
[key-str & [pass-phrase]]
(with-open [r (StringReader. key-str)]
(pem->public-key r pass-phrase)))