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[feat] Add additional suites #6

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Merged
merged 2 commits into from
Sep 1, 2024
Merged

[feat] Add additional suites #6

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41de9f1
[feat] Add DHKEM_P256_HKDF_SHA256__HKDF_SHA256__AES_256_GCM
jplock May 31, 2024
d43d1ad
[feat] Add additional suite - Suite__DHKEM_P384_HKDF_SHA384__HKDF_SHA…
jplock Jun 1, 2024
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2 changes: 2 additions & 0 deletions .gitignore
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Original file line number Diff line number Diff line change
@@ -0,0 +1,2 @@
.venv
*.pyc
27 changes: 27 additions & 0 deletions hpke/hpke.py
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Expand Up @@ -204,6 +204,13 @@ class DHKEM_P256_HKDF_SHA256(_DHKEMWeierstrass):
ID = 0x0010


class DHKEM_P384_HKDF_SHA384(_DHKEMWeierstrass):
CURVE = ec.SECP384R1()
KDF = HKDF_SHA384
NSECRET = 48
ID = 0x0011


class DHKEM_P521_HKDF_SHA512(_DHKEMWeierstrass):
CURVE = ec.SECP521R1()
KDF = HKDF_SHA512
Expand Down Expand Up @@ -571,6 +578,16 @@ class Suite__DHKEM_P256_HKDF_SHA256__HKDF_SHA256__AES_128_GCM(_Suite):
AEAD = _AES_128_GCM


class Suite__DHKEM_P256_HKDF_SHA256__HKDF_SHA256__AES_256_GCM(_Suite):
"""
This is DHKEM(P-256, HKDF-SHA256), HKDF-SHA256, AES-256-GCM
"""

KEM = DHKEM_P256_HKDF_SHA256
KDF = HKDF_SHA256
AEAD = _AES_256_GCM


class Suite__DHKEM_P256_HKDF_SHA256__HKDF_SHA512__AES_128_GCM(_Suite):
"""
This is DHKEM(P-256, HKDF-SHA256), HKDF-SHA512, AES-128-GCM
Expand All @@ -581,6 +598,16 @@ class Suite__DHKEM_P256_HKDF_SHA256__HKDF_SHA512__AES_128_GCM(_Suite):
AEAD = _AES_128_GCM


class Suite__DHKEM_P384_HKDF_SHA384__HKDF_SHA384__AES_256_GCM(_Suite):
"""
This is DHKEM(P-384, HKDF-SHA384), HKDF-SHA384, AES-256-GCM
"""

KEM = DHKEM_P384_HKDF_SHA384
KDF = HKDF_SHA384
AEAD = _AES_256_GCM


class Suite__DHKEM_P521_HKDF_SHA512__HKDF_SHA512__AES_256_GCM(_Suite):
"""
This is DHKEM(P-521, HKDF-SHA512), HKDF-SHA512, AES-256-GCM
Expand Down
2 changes: 2 additions & 0 deletions tests/test_pairwise.py
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Expand Up @@ -8,7 +8,9 @@

aead_suites = [
hpke.Suite__DHKEM_P256_HKDF_SHA256__HKDF_SHA256__AES_128_GCM,
hpke.Suite__DHKEM_P256_HKDF_SHA256__HKDF_SHA256__AES_256_GCM,
hpke.Suite__DHKEM_P256_HKDF_SHA256__HKDF_SHA512__AES_128_GCM,
hpke.Suite__DHKEM_P384_HKDF_SHA384__HKDF_SHA384__AES_256_GCM,
hpke.Suite__DHKEM_P521_HKDF_SHA512__HKDF_SHA512__AES_256_GCM,
hpke.Suite__DHKEM_P256_HKDF_SHA256__HKDF_SHA256__ChaCha20Poly1305,
]
Expand Down