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Deprecated.

This class is only provided for backwards compatibility. Use OpenSSL::Cipher.

RSA is an asymmetric public key algorithm that has been formalized in RFC 3447. It is in widespread use in public key infrastructures (PKI) where certificates (cf. OpenSSL::X509::Certificate) often are issued on the basis of a public/private RSA key pair. RSA is used in a wide field of applications such as secure (symmetric) key exchange, e.g. when establishing a secure TLS/SSL connection. It is also used in various digital signature schemes.

An SSLContext is used to set various options regarding certificates, algorithms, verification, session caching, etc. The SSLContext is used to create an SSLSocket.

All attributes must be set before creating an SSLSocket as the SSLContext will be frozen afterward.

A StoreContext is used while validating a single certificate and holds the status involved.

Generic error class for all errors raised in ASN1 and any of the classes defined in it.

The parent class for all primitive encodings. Attributes are the same as for ASN1Data, with the addition of tagging. Primitive values can never be encoded with indefinite length form, thus it is not possible to set the indefinite_length attribute for Primitive and its sub-classes.

Primitive sub-classes and their mapping to Ruby classes

• OpenSSL::ASN1::EndOfContent <=> value is always nil

• OpenSSL::ASN1::Boolean <=> value is true or false

• OpenSSL::ASN1::Integer <=> value is an OpenSSL::BN

• OpenSSL::ASN1::BitString <=> value is a String

• OpenSSL::ASN1::OctetString <=> value is a String

• OpenSSL::ASN1::Null <=> value is always nil

• OpenSSL::ASN1::Object <=> value is a String

• OpenSSL::ASN1::Enumerated <=> value is an OpenSSL::BN

• OpenSSL::ASN1::UTF8String <=> value is a String

• OpenSSL::ASN1::NumericString <=> value is a String

• OpenSSL::ASN1::PrintableString <=> value is a String

• OpenSSL::ASN1::T61String <=> value is a String

• OpenSSL::ASN1::VideotexString <=> value is a String

• OpenSSL::ASN1::IA5String <=> value is a String

• OpenSSL::ASN1::UTCTime <=> value is a Time

• OpenSSL::ASN1::GeneralizedTime <=> value is a Time

• OpenSSL::ASN1::GraphicString <=> value is a String

• OpenSSL::ASN1::ISO64String <=> value is a String

• OpenSSL::ASN1::GeneralString <=> value is a String

• OpenSSL::ASN1::UniversalString <=> value is a String

• OpenSSL::ASN1::BMPString <=> value is a String

OpenSSL::ASN1::BitString

Additional attributes

unused_bits: if the underlying BIT STRING’s length is a multiple of 8 then unused_bits is 0. Otherwise unused_bits indicates the number of bits that are to be ignored in the final octet of the BitString’s value.

OpenSSL::ASN1::ObjectId

NOTE: While OpenSSL::ASN1::ObjectId.new will allocate a new ObjectId, it is not typically allocated this way, but rather that are received from parsed ASN1 encodings.

Additional attributes

• sn: the short name as defined in <openssl/objects.h>.

• ln: the long name as defined in <openssl/objects.h>.

• oid: the object identifier as a String, e.g. “1.2.3.4.5”

• short_name: alias for sn.

• long_name: alias for ln.

Examples

With the Exception of OpenSSL::ASN1::EndOfContent, each Primitive class constructor takes at least one parameter, the value.

Creating EndOfContent

eoc = OpenSSL::ASN1::EndOfContent.new

Creating any other Primitive

prim = <class>.new(value) # <class> being one of the sub-classes except EndOfContent
prim_zero_tagged_implicit = <class>.new(value, 0, :IMPLICIT)
prim_zero_tagged_explicit = <class>.new(value, 0, :EXPLICIT)

Represents the primitive object id for OpenSSL::ASN1

Generic Exception class that is raised if an error occurs during a Digest operation.

This is the generic exception for OpenSSL::Engine related errors

Generic exception class raised if an error occurs in OpenSSL::KDF module.

Generic Exception class that is raised if an error occurs during an operation on an instance of OpenSSL::Netscape::SPKI.

OCSP error class.

Raised when errors occur during PKey#sign or PKey#verify.

Generic exception that is raised if an operation on a DH PKey fails unexpectedly or in case an instantiation of an instance of DH fails due to non-conformant input data.

Generic exception that is raised if an operation on a DSA PKey fails unexpectedly or in case an instantiation of an instance of DSA fails due to non-conformant input data.

Generic error class raised by SSLSocket and SSLContext.