updated docstring

Author: daniel-sanche

google/auth/crypt/_cryptography_rsa.py

@@ -62,7 +62,7 @@ def _warn_rsa_type(key_type):
 class RSAVerifier(base.Verifier):
     """Verifies RSA cryptographic signatures using public keys.
 
-    Note: rsa.key.PublicKey keys are currently supported, but the `rsa` library
+    Note: rsa.key.PublicKey keys are currently accepted, but the `rsa` library
     is deprecated. Please migrate to `cryptography` keys or use
     `.from_string()` instead
 
@@ -121,7 +121,7 @@ def from_string(cls, public_key):
 class RSASigner(base.Signer, base.FromServiceAccountMixin):
     """Signs messages with an RSA private key.
 
-    Note: rsa.key.PrivateKey keys are currently supported, but the `rsa` library
+    Note: rsa.key.PrivateKey keys are currently accepted, but the `rsa` library
     is deprecated. Please migrate to `cryptography` keys or use
     `.from_string()` instead
 

testing/constraints-3.7.txt

@@ -7,7 +7,7 @@
 # Then this file should have foo==1.14.0
 pyasn1-modules==0.2.1
 setuptools==40.3.0
-rsa==3.1.4
+rsa==3.1.4  # deprecated, but should be backwards-compatible
 aiohttp==3.6.2
 requests==2.20.0
-pyjwt==2.0
+pyjwt==2.0