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AI-generated Key Takeaways
KeySpec is an interface used to define the material that makes up a cryptographic key, including information for identifying keys stored on hardware.
Keys can be specified in an algorithm-specific way (like using components for a DSA key) or in an algorithm-independent encoding format (like DER encoding).
The primary purpose of this interface is to group and provide type safety for all key specifications, ensuring all implementations adhere to a common type.
KeySpec itself has no methods or constants; it serves solely as a marker interface for key specifications.
This class specifies an RSA multi-prime private key, as defined in the
PKCS#1 v2.1, using the Chinese Remainder Theorem (CRT) information
values for efficiency.
This class specifies an RSA private key, as defined in the PKCS#1
standard, using the Chinese Remainder Theorem (CRT) information values for
efficiency.
This class represents the ASN.1 encoding of a public key,
encoded according to the ASN.1 type SubjectPublicKeyInfo.
A (transparent) specification of the key material
that constitutes a cryptographic key.
If the key is stored on a hardware device, its
specification may contain information that helps identify the key on the
device.
A key may be specified in an algorithm-specific way, or in an
algorithm-independent encoding format (such as ASN.1).
For example, a DSA private key may be specified by its components
x, p, q, and g
(see DSAPrivateKeySpec), or it may be
specified using its DER encoding
(see PKCS8EncodedKeySpec).
This interface contains no methods or constants. Its only purpose
is to group (and provide type safety for) all key specifications.
All key specifications must implement this interface.
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