Klas Lindfors
62 lines
1.7 KiB
Plaintext
62 lines
1.7 KiB
Plaintext
Load and use Android code signing certificate
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This is a step-by-step guide on how to load and use an android code signing
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key and certificate.
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Prerequisites
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-------------
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* a YubiKey with the PIV application
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* the yubico-piv-tool software
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* the OpenSC software
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* jarsigner and keytool from the JDK (openjdk 8 used here)
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Steps
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-----
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1. Import the key and cert, do a or b
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a. Import the key and cert (PEM format) in slot 9a:
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$ yubico-piv-tool -s 9a -a import-key -i key.pem
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$ yubico-piv-tool -s 9a -a import-certificate -i cert.pem
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b. Import the key and cert (PKCS12 format) in slot 9a:
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$ yubico-piv-tool -s 9a -a import-key -a import-cert -i key.p12 -K PKCS12
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2. Create a java pkcs11 configuration file:
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cat > /tmp/pkcs11_java.cfg
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name = OpenSC-PKCS11
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description = SunPKCS11 via OpenSC
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library = /usr/lib/x86_64-linux-gnu/opensc-pkcs11.so
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slotListIndex = 1
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3. Check that keytool can see the key:
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$ keytool -providerClass sun.security.pkcs11.SunPKCS11 -providerArg /tmp/pkcs11_java.cfg \
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-keystore NONE -storetype PKCS11 -list
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Enter keystore password:
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+
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Keystore type: PKCS11
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Keystore provider: SunPKCS11-OpenSC-PKCS11
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+
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Your keystore contains 1 entry
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+
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Certificate for PIV Authentication, PrivateKeyEntry,
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Certificate fingerprint (SHA1): 26:D7:CB:71:6D:42:3C:AB:58:69:E0:9D:F0:16:DF:84:7E:1C:5A:9A
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+
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Password here is the PIN of the key (default 123456).
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4. Sign the apk with jarsigner:
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$ jarsigner -providerClass sun.security.pkcs11.SunPKCS11 -providerArg /tmp/pkcs11_java.cfg \
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-keystore NONE -storetype PKCS11 app.apk "Certificate for PIV Authentication"
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Enter Passphrase for keystore:
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jar signed.
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5. Verify the signature with jarsigner:
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$ jarsigner -verify app.apk
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