module TTTLS13::NamedGroup
Constants
- SECP256R1
- SECP384R1
- SECP521R1
Public Class Methods
curve_name(group)
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NOTE: SECG | ANSI X9.62 | NIST ————---------------
————- secp256r1 | prime256v1 | NIST P-256 secp384r1 | | NIST P-384 secp521r1 | | NIST P-521
tools.ietf.org/html/rfc4492#appendix-A
@param groups [Array of TTTLS13::Message::Extension::NamedGroup]
@raise [TTTLS13::Error::ErrorAlerts]
@return [String] EC_builtin_curves
# File lib/tttls1.3/named_group.rb, line 74 def curve_name(group) case group when SECP256R1 'prime256v1' when SECP384R1 'secp384r1' when SECP521R1 'secp521r1' else # not supported other NamedGroup raise Error::ErrorAlerts, :internal_error end end
key_exchange_len(group)
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NOTE: For secp256r1, secp384r1, and secp521r1
struct { uint8 legacy_form = 4; opaque X[coordinate_length]; opaque Y[coordinate_length]; } UncompressedPointRepresentation;
@param group [TTTLS13::Message::Extension::NamedGroup]
@raise [TTTLS13::Error::ErrorAlerts]
@return [Integer]
# File lib/tttls1.3/named_group.rb, line 34 def key_exchange_len(group) case group when SECP256R1 65 when SECP384R1 97 when SECP521R1 133 # not supported other NamedGroup # when X25519 # 32 # when X448 # 56 # when FFDHE2048 # 256 # when FFDHE4096 # 512 # when FFDHE6144 # 768 # when FFDHE8192 # 1024 else raise Error::ErrorAlerts, :internal_error end end