1 files changed, 194 insertions, 0 deletions
diff --git a/frozen_deps/ecdsa/curves.py b/frozen_deps/ecdsa/curves.py
new file mode 100644
index 0000000..9a10380
--- /dev/null
+++ b/frozen_deps/ecdsa/curves.py
@@ -0,0 +1,194 @@
+from __future__ import division
+
+from . import der, ecdsa
+from .util import orderlen
+
+
+# orderlen was defined in this module previously, so keep it in __all__,
+# will need to mark it as deprecated later
+__all__ = [
+    "UnknownCurveError",
+    "orderlen",
+    "Curve",
+    "NIST192p",
+    "NIST224p",
+    "NIST256p",
+    "NIST384p",
+    "NIST521p",
+    "curves",
+    "find_curve",
+    "SECP256k1",
+    "BRAINPOOLP160r1",
+    "BRAINPOOLP192r1",
+    "BRAINPOOLP224r1",
+    "BRAINPOOLP256r1",
+    "BRAINPOOLP320r1",
+    "BRAINPOOLP384r1",
+    "BRAINPOOLP512r1",
+]
+
+
+class UnknownCurveError(Exception):
+    pass
+
+
+class Curve:
+    def __init__(self, name, curve, generator, oid, openssl_name=None):
+        self.name = name
+        self.openssl_name = openssl_name  # maybe None
+        self.curve = curve
+        self.generator = generator
+        self.order = generator.order()
+        self.baselen = orderlen(self.order)
+        self.verifying_key_length = 2 * self.baselen
+        self.signature_length = 2 * self.baselen
+        self.oid = oid
+        self.encoded_oid = der.encode_oid(*oid)
+
+    def __repr__(self):
+        return self.name
+
+
+# the NIST curves
+NIST192p = Curve(
+    "NIST192p",
+    ecdsa.curve_192,
+    ecdsa.generator_192,
+    (1, 2, 840, 10045, 3, 1, 1),
+    "prime192v1",
+)
+
+
+NIST224p = Curve(
+    "NIST224p",
+    ecdsa.curve_224,
+    ecdsa.generator_224,
+    (1, 3, 132, 0, 33),
+    "secp224r1",
+)
+
+
+NIST256p = Curve(
+    "NIST256p",
+    ecdsa.curve_256,
+    ecdsa.generator_256,
+    (1, 2, 840, 10045, 3, 1, 7),
+    "prime256v1",
+)
+
+
+NIST384p = Curve(
+    "NIST384p",
+    ecdsa.curve_384,
+    ecdsa.generator_384,
+    (1, 3, 132, 0, 34),
+    "secp384r1",
+)
+
+
+NIST521p = Curve(
+    "NIST521p",
+    ecdsa.curve_521,
+    ecdsa.generator_521,
+    (1, 3, 132, 0, 35),
+    "secp521r1",
+)
+
+
+SECP256k1 = Curve(
+    "SECP256k1",
+    ecdsa.curve_secp256k1,
+    ecdsa.generator_secp256k1,
+    (1, 3, 132, 0, 10),
+    "secp256k1",
+)
+
+
+BRAINPOOLP160r1 = Curve(
+    "BRAINPOOLP160r1",
+    ecdsa.curve_brainpoolp160r1,
+    ecdsa.generator_brainpoolp160r1,
+    (1, 3, 36, 3, 3, 2, 8, 1, 1, 1),
+    "brainpoolP160r1",
+)
+
+
+BRAINPOOLP192r1 = Curve(
+    "BRAINPOOLP192r1",
+    ecdsa.curve_brainpoolp192r1,
+    ecdsa.generator_brainpoolp192r1,
+    (1, 3, 36, 3, 3, 2, 8, 1, 1, 3),
+    "brainpoolP192r1",
+)
+
+
+BRAINPOOLP224r1 = Curve(
+    "BRAINPOOLP224r1",
+    ecdsa.curve_brainpoolp224r1,
+    ecdsa.generator_brainpoolp224r1,
+    (1, 3, 36, 3, 3, 2, 8, 1, 1, 5),
+    "brainpoolP224r1",
+)
+
+
+BRAINPOOLP256r1 = Curve(
+    "BRAINPOOLP256r1",
+    ecdsa.curve_brainpoolp256r1,
+    ecdsa.generator_brainpoolp256r1,
+    (1, 3, 36, 3, 3, 2, 8, 1, 1, 7),
+    "brainpoolP256r1",
+)
+
+
+BRAINPOOLP320r1 = Curve(
+    "BRAINPOOLP320r1",
+    ecdsa.curve_brainpoolp320r1,
+    ecdsa.generator_brainpoolp320r1,
+    (1, 3, 36, 3, 3, 2, 8, 1, 1, 9),
+    "brainpoolP320r1",
+)
+
+
+BRAINPOOLP384r1 = Curve(
+    "BRAINPOOLP384r1",
+    ecdsa.curve_brainpoolp384r1,
+    ecdsa.generator_brainpoolp384r1,
+    (1, 3, 36, 3, 3, 2, 8, 1, 1, 11),
+    "brainpoolP384r1",
+)
+
+
+BRAINPOOLP512r1 = Curve(
+    "BRAINPOOLP512r1",
+    ecdsa.curve_brainpoolp512r1,
+    ecdsa.generator_brainpoolp512r1,
+    (1, 3, 36, 3, 3, 2, 8, 1, 1, 13),
+    "brainpoolP512r1",
+)
+
+
+curves = [
+    NIST192p,
+    NIST224p,
+    NIST256p,
+    NIST384p,
+    NIST521p,
+    SECP256k1,
+    BRAINPOOLP160r1,
+    BRAINPOOLP192r1,
+    BRAINPOOLP224r1,
+    BRAINPOOLP256r1,
+    BRAINPOOLP320r1,
+    BRAINPOOLP384r1,
+    BRAINPOOLP512r1,
+]
+
+
+def find_curve(oid_curve):
+    for c in curves:
+        if c.oid == oid_curve:
+            return c
+    raise UnknownCurveError(
+        "I don't know about the curve with oid %s."
+        "I only know about these: %s" % (oid_curve, [c.name for c in curves])
+    )