pythoncapi
diff --git a/‎Lib/test/test_hashlib.py‎
Lines changed: 2 additions & 2 deletions b/‎Lib/test/test_hashlib.py‎
Lines changed: 2 additions & 2 deletions
diff --git a/‎Misc/NEWS‎
Lines changed: 3 additions & 0 deletions b/‎Misc/NEWS‎
Lines changed: 3 additions & 0 deletions
diff --git a/‎Modules/md5module.c‎
Lines changed: 1 addition & 1 deletion b/‎Modules/md5module.c‎
Lines changed: 1 addition & 1 deletion
diff --git a/‎Modules/sha1module.c‎
Lines changed: 1 addition & 1 deletion b/‎Modules/sha1module.c‎
Lines changed: 1 addition & 1 deletion
diff --git a/‎Modules/sha256module.c‎
Lines changed: 2 additions & 2 deletions b/‎Modules/sha256module.c‎
Lines changed: 2 additions & 2 deletions
diff --git a/‎Modules/sha512module.c‎
Lines changed: 2 additions & 2 deletions b/‎Modules/sha512module.c‎
Lines changed: 2 additions & 2 deletions
@@ -233,9 +233,9 @@ def check_blocksize_name(self, name, block_size=0, digest_size=0):
             self.assertEqual(m.block_size, block_size)
             self.assertEqual(m.digest_size, digest_size)
             self.assertEqual(len(m.digest()), digest_size)
-            self.assertEqual(m.name.lower(), name.lower())
+            self.assertEqual(m.name, name)
             # split for sha3_512 / _sha3.sha3 object
-            self.assertIn(name.split("_")[0], repr(m).lower())
+            self.assertIn(name.split("_")[0], repr(m))
 
     def test_blocksize_name(self):
         self.check_blocksize_name('md5', 64, 16)
 
@@ -28,6 +28,9 @@ Core and Builtins
 Library
 -------
 
+- Issue #18532: Change the builtin hash algorithms' names to lower case names
+  as promised by hashlib's documentation.
+
 - Issue #18405: Improve the entropy of crypt.mksalt().
 
 - Issue #12015: The tempfile module now uses a suffix of 8 random characters
 
@@ -439,7 +439,7 @@ MD5_get_block_size(PyObject *self, void *closure)
 static PyObject *
 MD5_get_name(PyObject *self, void *closure)
 {
-    return PyUnicode_FromStringAndSize("MD5", 3);
+    return PyUnicode_FromStringAndSize("md5", 3);
 }
 
 static PyObject *
 
@@ -411,7 +411,7 @@ SHA1_get_block_size(PyObject *self, void *closure)
 static PyObject *
 SHA1_get_name(PyObject *self, void *closure)
 {
-    return PyUnicode_FromStringAndSize("SHA1", 4);
+    return PyUnicode_FromStringAndSize("sha1", 4);
 }
 
 static PyObject *
 
@@ -501,9 +501,9 @@ static PyObject *
 SHA256_get_name(PyObject *self, void *closure)
 {
     if (((SHAobject *)self)->digestsize == 32)
-        return PyUnicode_FromStringAndSize("SHA256", 6);
+        return PyUnicode_FromStringAndSize("sha256", 6);
     else
-        return PyUnicode_FromStringAndSize("SHA224", 6);
+        return PyUnicode_FromStringAndSize("sha224", 6);
 }
 
 static PyGetSetDef SHA_getseters[] = {
 
@@ -567,9 +567,9 @@ static PyObject *
 SHA512_get_name(PyObject *self, void *closure)
 {
     if (((SHAobject *)self)->digestsize == 64)
-        return PyUnicode_FromStringAndSize("SHA512", 6);
+        return PyUnicode_FromStringAndSize("sha512", 6);
     else
-        return PyUnicode_FromStringAndSize("SHA384", 6);
+        return PyUnicode_FromStringAndSize("sha384", 6);
 }
 
 static PyGetSetDef SHA_getseters[] = {
Original file line number	Diff line number	Diff line change
`@@ -439,7 +439,7 @@ MD5_get_block_size(PyObject self, void closure)`
`439`	`439`	`static PyObject *`
`440`	`440`	`MD5_get_name(PyObject self, void closure)`
`441`	`441`	`{`
`442`		`- return PyUnicode_FromStringAndSize("MD5", 3);`
	`442`	`+ return PyUnicode_FromStringAndSize("md5", 3);`
`443`	`443`	`}`
`444`	`444`
`445`	`445`	`static PyObject *`
Original file line number	Diff line number	Diff line change
`@@ -411,7 +411,7 @@ SHA1_get_block_size(PyObject self, void closure)`
`411`	`411`	`static PyObject *`
`412`	`412`	`SHA1_get_name(PyObject self, void closure)`
`413`	`413`	`{`
`414`		`- return PyUnicode_FromStringAndSize("SHA1", 4);`
	`414`	`+ return PyUnicode_FromStringAndSize("sha1", 4);`
`415`	`415`	`}`
`416`	`416`
`417`	`417`	`static PyObject *`
Original file line number	Diff line number	Diff line change
`@@ -501,9 +501,9 @@ static PyObject *`
`501`	`501`	`SHA256_get_name(PyObject self, void closure)`
`502`	`502`	`{`
`503`	`503`	`if (((SHAobject *)self)->digestsize == 32)`
`504`		`- return PyUnicode_FromStringAndSize("SHA256", 6);`
	`504`	`+ return PyUnicode_FromStringAndSize("sha256", 6);`
`505`	`505`	`else`
`506`		`- return PyUnicode_FromStringAndSize("SHA224", 6);`
	`506`	`+ return PyUnicode_FromStringAndSize("sha224", 6);`
`507`	`507`	`}`
`508`	`508`
`509`	`509`	`static PyGetSetDef SHA_getseters[] = {`
Original file line number	Diff line number	Diff line change
`@@ -567,9 +567,9 @@ static PyObject *`
`567`	`567`	`SHA512_get_name(PyObject self, void closure)`
`568`	`568`	`{`
`569`	`569`	`if (((SHAobject *)self)->digestsize == 64)`
`570`		`- return PyUnicode_FromStringAndSize("SHA512", 6);`
	`570`	`+ return PyUnicode_FromStringAndSize("sha512", 6);`
`571`	`571`	`else`
`572`		`- return PyUnicode_FromStringAndSize("SHA384", 6);`
	`572`	`+ return PyUnicode_FromStringAndSize("sha384", 6);`
`573`	`573`	`}`
`574`	`574`
`575`	`575`	`static PyGetSetDef SHA_getseters[] = {`