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| List the available algorithm names for ciphers, key agreement, macs, message digests and signatures |
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/*
Ciphers:
None available.
KeyAgreeents:
None available.
Macs:
None available.
MessageDigests:
SHA-512
SHA1
MD2
SHA
SHA ImplementedIn
SHA-256
MD5 ImplementedIn
SHA-1
MD5
SHA-384
Signatures:
OID.1.2.840.10040.4.3
OID.1.2.840.113549.1.1.4
SHA384withRSA
1.3.14.3.2.29
SHA512withRSA SupportedKeyClasses
SHA/DSA
SHA1withDSA KeySize
NONEwithDSA SupportedKeyClasses
OID.1.2.840.113549.1.1.5
SHA512withRSA
MD5withRSA
DSS
OID.1.2.840.113549.1.1.11
SHA384withRSA SupportedKeyClasses
SHA1withRSA
MD5withRSA SupportedKeyClasses
NONEwithDSA
1.2.840.113549.1.1.4
MD5andSHA1withRSA
1.2.840.113549.1.1.11
OID.1.2.840.113549.1.1.13
1.3.14.3.2.27
1.2.840.10040.4.3
SHA256withRSA
MD2withRSA SupportedKeyClasses
1.2.840.113549.1.1.2
1.2.840.113549.1.1.12
RawDSA
SHA1withDSA
SHA1/DSA
MD2withRSA
1.3.14.3.2.13
SHAwithDSA
DSAWithSHA1
1.2.840.113549.1.1.13
OID.1.3.14.3.2.29
SHA1withDSA ImplementedIn
SHA256withRSA SupportedKeyClasses
SHA1withDSA SupportedKeyClasses
DSA
1.2.840.113549.1.1.5
SHA-1/DSA
SHA1withRSA SupportedKeyClasses
OID.1.2.840.113549.1.1.12
OID.1.2.840.113549.1.1.2
*/
import java.security.Provider;
import java.security.Security;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Set;
public class ListAlgorithms {
public static void printSet(String setName, Set algorithms) {
System.out.println(setName + ":");
if (algorithms.isEmpty()) {
System.out.println(" None available.");
} else {
Iterator it = algorithms.iterator();
while (it.hasNext()) {
String name = (String) it.next();
System.out.println(" " + name);
}
}
}
public static void main(String[] args) {
Provider[] providers = Security.getProviders();
Set<String> ciphers = new HashSet<String>();
Set<String> keyAgreements = new HashSet<String>();
Set<String> macs = new HashSet<String>();
Set<String> messageDigests = new HashSet<String>();
Set<String> signatures = new HashSet<String>();
for (int i = 0; i != providers.length; i++) {
Iterator it = providers[i].keySet().iterator();
while (it.hasNext()) {
String entry = (String) it.next();
if (entry.startsWith("Alg.Alias.")) {
entry = entry.substring("Alg.Alias.".length());
}
if (entry.startsWith("Cipher.")) {
ciphers.add(entry.substring("Cipher.".length()));
} else if (entry.startsWith("KeyAgreement.")) {
keyAgreements.add(entry.substring("KeyAgreement.".length()));
} else if (entry.startsWith("Mac.")) {
macs.add(entry.substring("Mac.".length()));
} else if (entry.startsWith("MessageDigest.")) {
messageDigests.add(entry.substring("MessageDigest.".length()));
} else if (entry.startsWith("Signature.")) {
signatures.add(entry.substring("Signature.".length()));
}
}
}
printSet("Ciphers", ciphers);
printSet("KeyAgreeents", keyAgreements);
printSet("Macs", macs);
printSet("MessageDigests", messageDigests);
printSet("Signatures", signatures);
}
}
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