Package org.bouncycastle.jce
Class ECKeyUtil
- java.lang.Object
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- org.bouncycastle.jce.ECKeyUtil
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public class ECKeyUtil extends java.lang.Object
Utility class to allow conversion of EC key parameters to explicit from named curves and back (where possible).
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Constructor Summary
Constructors Constructor Description ECKeyUtil()
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Method Summary
All Methods Static Methods Concrete Methods Modifier and Type Method Description static java.security.PrivateKey
privateToExplicitParameters(java.security.PrivateKey key, java.lang.String providerName)
Convert a passed in private EC key to have explicit parameters.static java.security.PrivateKey
privateToExplicitParameters(java.security.PrivateKey key, java.security.Provider provider)
Convert a passed in private EC key to have explicit parameters.static java.security.PublicKey
publicToExplicitParameters(java.security.PublicKey key, java.lang.String providerName)
Convert a passed in public EC key to have explicit parameters.static java.security.PublicKey
publicToExplicitParameters(java.security.PublicKey key, java.security.Provider provider)
Convert a passed in public EC key to have explicit parameters.
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Method Detail
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publicToExplicitParameters
public static java.security.PublicKey publicToExplicitParameters(java.security.PublicKey key, java.lang.String providerName) throws java.lang.IllegalArgumentException, java.security.NoSuchAlgorithmException, java.security.NoSuchProviderException
Convert a passed in public EC key to have explicit parameters. If the key is already using explicit parameters it is returned.- Parameters:
key
- key to be convertedproviderName
- provider name to be used.- Returns:
- the equivalent key with explicit curve parameters
- Throws:
java.lang.IllegalArgumentException
java.security.NoSuchAlgorithmException
java.security.NoSuchProviderException
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publicToExplicitParameters
public static java.security.PublicKey publicToExplicitParameters(java.security.PublicKey key, java.security.Provider provider) throws java.lang.IllegalArgumentException, java.security.NoSuchAlgorithmException
Convert a passed in public EC key to have explicit parameters. If the key is already using explicit parameters it is returned.- Parameters:
key
- key to be convertedprovider
- provider to be used.- Returns:
- the equivalent key with explicit curve parameters
- Throws:
java.lang.IllegalArgumentException
java.security.NoSuchAlgorithmException
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privateToExplicitParameters
public static java.security.PrivateKey privateToExplicitParameters(java.security.PrivateKey key, java.lang.String providerName) throws java.lang.IllegalArgumentException, java.security.NoSuchAlgorithmException, java.security.NoSuchProviderException
Convert a passed in private EC key to have explicit parameters. If the key is already using explicit parameters it is returned.- Parameters:
key
- key to be convertedproviderName
- provider name to be used.- Returns:
- the equivalent key with explicit curve parameters
- Throws:
java.lang.IllegalArgumentException
java.security.NoSuchAlgorithmException
java.security.NoSuchProviderException
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privateToExplicitParameters
public static java.security.PrivateKey privateToExplicitParameters(java.security.PrivateKey key, java.security.Provider provider) throws java.lang.IllegalArgumentException, java.security.NoSuchAlgorithmException
Convert a passed in private EC key to have explicit parameters. If the key is already using explicit parameters it is returned.- Parameters:
key
- key to be convertedprovider
- provider to be used.- Returns:
- the equivalent key with explicit curve parameters
- Throws:
java.lang.IllegalArgumentException
java.security.NoSuchAlgorithmException
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