diff --git a/subresource-integrity/signatures/tentative/fetch.any.js b/subresource-integrity/signatures/tentative/fetch.any.js
index 4840451b27f17c..2bfb2b4654aa4a 100644
--- a/subresource-integrity/signatures/tentative/fetch.any.js
+++ b/subresource-integrity/signatures/tentative/fetch.any.js
@@ -13,7 +13,7 @@
 // Content-Type: application/json
 // Identity-Digest: sha-256=:X48E9qOokqqrvdts8nOJRJN3OWDUoyWxBf7kbu9DBPE=:
 // Content-Length: 18
-// Signature-Input: signature=("identity-digest";sf);alg="ed25519"; \
+// Signature-Input: signature=("identity-digest";sf); \
 //                  keyid="JrQLj5P/89iXES9+vFgrIy29clF9CC/oPPsw3c5D0bs="; \
 //                  tag="sri"
 // Signature: signature=:TUznBT2ikFq6VrtoZeC5znRtZugu1U8OHJWoBkOLDTJA2FglSR34Q \
@@ -26,8 +26,8 @@
 const kRequestWithValidSignature = {
   body: `{"hello": "world"}`,
   digest: `sha-256=:X48E9qOokqqrvdts8nOJRJN3OWDUoyWxBf7kbu9DBPE=:`,
-  signature: `signature=:TUznBT2ikFq6VrtoZeC5znRtZugu1U8OHJWoBkOLDTJA2FglSR34QY9j+BwN79PT4H0p8aIosnv4rXSKfIZVDA==:`,
-  signatureInput: `signature=("identity-digest";sf);alg="ed25519";keyid="${kValidKeys['rfc']}";tag="sri"`
+  signature: `signature=:eTKYITprfJYJmsOZlRTmu0szHbt0yLxHYBU0oXDdkx8najLl59IPO0zUofe5T23RGuquHLdZx177tBX45CUcAg==:`,
+  signatureInput: `signature=("identity-digest";sf);keyid="${kValidKeys['rfc']}";tag="sri"`
 };
 
 // Metadata from the response above, but with an incorrect signature:
@@ -35,7 +35,7 @@ const kRequestWithInvalidSignature = {
   body: `{"hello": "world"}`,
   digest: `sha-256=:X48E9qOokqqrvdts8nOJRJN3OWDUoyWxBf7kbu9DBPE=:`,
   signature: `signature=:AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==:`,
-  signatureInput: `signature=("identity-digest";sf);alg="ed25519";keyid="${kValidKeys['rfc']}";tag="sri"`
+  signatureInput: `signature=("identity-digest";sf);keyid="${kValidKeys['rfc']}";tag="sri"`
 };
 
 generate_fetch_test({}, "", EXPECT_LOADED,
diff --git a/subresource-integrity/signatures/tentative/path.window.js b/subresource-integrity/signatures/tentative/path.window.js
index 37a6c04046098c..f4d311183e3054 100644
--- a/subresource-integrity/signatures/tentative/path.window.js
+++ b/subresource-integrity/signatures/tentative/path.window.js
@@ -13,7 +13,7 @@
 // Content-Type: application/json
 // Identity-Digest: sha-256=:X48E9qOokqqrvdts8nOJRJN3OWDUoyWxBf7kbu9DBPE=:
 // Content-Length: 18
-// Signature-Input: signature=("identity-digest";sf "@path";req);alg="ed25519"; \
+// Signature-Input: signature=("identity-digest";sf "@path";req); \
 //                  keyid="JrQLj5P/89iXES9+vFgrIy29clF9CC/oPPsw3c5D0bs=";       \
 //                  tag="sri"
 // Signature: signature=:oVQ+s/OqXLAVdfvgZ3HaPiyzkpNXZSit9l6e1FB/gOOL3t8FOrIRDV \
@@ -33,26 +33,26 @@ const kRequestsWithValidSignature = [
   // ```
   // "identity-digest";sf: sha-256=:PZJ+9CdAAIacg7wfUe4t/RkDQJVKM0mCZ2K7qiRhHFc=:
   // "@path";req: /subresource-integrity/signatures/tentative/resource.py
-  // "@signature-params": ("identity-digest";sf "@path";req);alg="ed25519";keyid="JrQLj5P/89iXES9+vFgrIy29clF9CC/oPPsw3c5D0bs=";tag="sri"
+  // "@signature-params": ("identity-digest";sf "@path";req);keyid="JrQLj5P/89iXES9+vFgrIy29clF9CC/oPPsw3c5D0bs=";tag="sri"
   // ```
   {
     body: "window.hello = `world`;",
     digest: "sha-256=:PZJ+9CdAAIacg7wfUe4t/RkDQJVKM0mCZ2K7qiRhHFc=:",
-    signature: `signature=:AEW2XbDmmBK71KBle0Dx1JAWAO7B4QdEH2Tw71c9nntjUmx8xF5t8xbsETRHFwULrvJ4STBFtdMVm5a7QIw5Cw==:`,
-    signatureInput: `signature=("identity-digest";sf "@path";req);alg="ed25519";keyid="${kValidKeys['rfc']}";tag="sri"`
+    signature: `signature=:W54PPjO6aWHvhTmDICG4EGLs461FrwYxXE/UkBH7dz9V5lnCtv3N6ZTmOxPRMkmADhRilem6W/Zq5SH9tVoxAg==:`,
+    signatureInput: `signature=("identity-digest";sf "@path";req);keyid="${kValidKeys['rfc']}";tag="sri"`
   },
   // `@path` then `identity-digest`, with the following signature base:
   //
   // ```
   // "@path";req: /subresource-integrity/signatures/tentative/resource.py
   // "identity-digest";sf: sha-256=:PZJ+9CdAAIacg7wfUe4t/RkDQJVKM0mCZ2K7qiRhHFc=:
-  // "@signature-params": ("@path";req "identity-digest";sf);alg="ed25519";keyid="JrQLj5P/89iXES9+vFgrIy29clF9CC/oPPsw3c5D0bs=";tag="sri"
+  // "@signature-params": ("@path";req "identity-digest";sf);keyid="JrQLj5P/89iXES9+vFgrIy29clF9CC/oPPsw3c5D0bs=";tag="sri"
   // ```
   {
     body: "window.hello = `world`;",
     digest: "sha-256=:PZJ+9CdAAIacg7wfUe4t/RkDQJVKM0mCZ2K7qiRhHFc=:",
-    signature: `signature=:NEmnhhW1aKxO+ReWQmmSF17i49ZEdtDC4lRI2CJDw2E/rz9j2a8f8kIwVk7W/BIuQ6kejTAQ2FReGmmkREXPDg==:`,
-    signatureInput: `signature=("@path";req "identity-digest";sf);alg="ed25519";keyid="${kValidKeys['rfc']}";tag="sri"`
+    signature: `signature=:qF/RJ9L8bCpRx5cm6QW9qvqw7nU0ziwi6lLD6KkhT/ZgLS2c6O9s4UFXieM9+waU71YtNfTXQAQ4PeMSAVKlDQ==:`,
+    signatureInput: `signature=("@path";req "identity-digest";sf);keyid="${kValidKeys['rfc']}";tag="sri"`
   }
 ];
 
diff --git a/subresource-integrity/signatures/tentative/script.window.js b/subresource-integrity/signatures/tentative/script.window.js
index c9ccee34f324ef..11355ca694d27a 100644
--- a/subresource-integrity/signatures/tentative/script.window.js
+++ b/subresource-integrity/signatures/tentative/script.window.js
@@ -13,15 +13,15 @@ const kScriptToExecute = {
   signatures: {
     // ```
     // "identity-digest";sf: sha-256=:PZJ+9CdAAIacg7wfUe4t/RkDQJVKM0mCZ2K7qiRhHFc=:
-    // "@signature-params": ("identity-digest";sf);alg="ed25519";keyid="JrQLj5P/89iXES9+vFgrIy29clF9CC/oPPsw3c5D0bs=";tag="sri"
+    // "@signature-params": ("identity-digest";sf);keyid="JrQLj5P/89iXES9+vFgrIy29clF9CC/oPPsw3c5D0bs=";tag="sri"
     // ```
-    rfc: "pRcIRwdXaZL4XqkAo1a7mXIlzETMgG93JWWgqDlx6XhWe8mC8umiEgbI3afULpzT1Buro4ZJfzEXwy8tC5HaCA==",
+    rfc: "lDlqBb5/GLDB8GnVt3DqiytUJwFj4OPA7pO9eXBowN0qpqa2uNIHZz5IR+IdwOLKe5tBTLvmiMCsnvku3ecUAQ==",
 
     // ```
     // "identity-digest";sf: sha-256=:PZJ+9CdAAIacg7wfUe4t/RkDQJVKM0mCZ2K7qiRhHFc=:
-    // "@signature-params": ("identity-digest";sf);alg="ed25519";keyid="xDnP380zcL4rJ76rXYjeHlfMyPZEOqpJYjsjEppbuXE=";tag="sri"
+    // "@signature-params": ("identity-digest";sf);keyid="xDnP380zcL4rJ76rXYjeHlfMyPZEOqpJYjsjEppbuXE=";tag="sri"
     // ```
-    arbitrary: "6zUKqibVA3CzFvQj6a+irKnOB9ZY2ky5opG7TMpFF0BtvJ1oAjoVjW3uObPlD/PBOrmkXFNRNwv3PVerE12FDQ=="
+    arbitrary: "kTzkz6pMEMAOWxI7JPhcNGsPVdIeM1dLEGVIVDdHELY0KDp4TQILxmTElrWGib68KgalaV2oQMz3+XA2sk/ICA=="
   }
 };
 
@@ -32,15 +32,15 @@ const kScriptToBlock = {
   signatures: {
     // ```
     // "identity-digest";sf: sha-256=:FUSFR1N3vTmSGbI7q9jaMbHq+ogNeBfpznOIufaIfpc=:
-    // "@signature-params": ("identity-digest";sf);alg="ed25519";keyid="JrQLj5P/89iXES9+vFgrIy29clF9CC/oPPsw3c5D0bs=";tag="sri"
+    // "@signature-params": ("identity-digest";sf);keyid="JrQLj5P/89iXES9+vFgrIy29clF9CC/oPPsw3c5D0bs=";tag="sri"
     // ```
-    rfc: "mXbPPr9LIwClnGOoPM/7mlRT3PfgCHnF4E5te6LocGWplqcxS6qKQoUPo/rnU8BxCY56/nI4BuGtgyjPr2lQCg==",
+    rfc: "IhHp/w0zpKnHvYStc2QuURfHyQBzgOHELlTt6RwspfvL23p/1CUzAnIu2WCKWtAFlZv6aZfggjLmiHJAHiWxAw==",
 
     // ```
     // "identity-digest";sf: sha-256=:FUSFR1N3vTmSGbI7q9jaMbHq+ogNeBfpznOIufaIfpc=:
-    // "@signature-params": ("identity-digest";sf);alg="ed25519";keyid="xDnP380zcL4rJ76rXYjeHlfMyPZEOqpJYjsjEppbuXE";tag="sri"
+    // "@signature-params": ("identity-digest";sf);keyid="xDnP380zcL4rJ76rXYjeHlfMyPZEOqpJYjsjEppbuXE";tag="sri"
     // ```
-    arbitrary: "FGQbZOeQIqXQLbooOWExK2M756WCcT4rcszNsXX6+Z6Wdofh4GKuXoFcFSdiYiGNamFMHEW6/BRMoVVjtnGwAg=="
+    arbitrary: "ghFEMST5TCy9a+cY7igV/RpdbOt26F9iJGNu7QTGQbJ1bZeaiqnH0WHWcfqRriFuzg1R7YAE3taZ94TA8K4ECg=="
   }
 };
 
@@ -63,13 +63,13 @@ generate_script_test(kUnsigned, `ed25519-${kValidKeys['rfc']}`, EXPECT_BLOCKED,
 const kSignedShouldExecute = {
   body: kScriptToExecute['body'],
   digest: `sha-256=:${kScriptToExecute['hash']}:`,
-  signatureInput: `signature=("identity-digest";sf);alg="ed25519";keyid="${kValidKeys['rfc']}";tag="sri"`,
+  signatureInput: `signature=("identity-digest";sf);keyid="${kValidKeys['rfc']}";tag="sri"`,
   signature: `signature=:${kScriptToExecute['signatures']['rfc']}:`
 };
 const kSignedShouldBlock = {
   body: kScriptToBlock['body'],
   digest: `sha-256=:${kScriptToBlock['hash']}:`,
-  signatureInput: `signature=("identity-digest";sf);alg="ed25519";keyid="${kValidKeys['rfc']}";tag="sri"`,
+  signatureInput: `signature=("identity-digest";sf);keyid="${kValidKeys['rfc']}";tag="sri"`,
   signature: `signature=:${kScriptToBlock['signatures']['rfc']}:`
 };
 
@@ -91,16 +91,16 @@ generate_script_test(kSignedShouldBlock, `ed25519-${kValidKeys['arbitrary']}`, E
 const kMultiplySignedShouldExecute = {
   body: kScriptToExecute['body'],
   digest: `sha-256=:${kScriptToExecute['hash']}:`,
-  signatureInput: `signature1=("identity-digest";sf);alg="ed25519";keyid="${kValidKeys['rfc']}";tag="sri", ` +
-                  `signature2=("identity-digest";sf);alg="ed25519";keyid="${kValidKeys['arbitrary']}";tag="sri"`,
+  signatureInput: `signature1=("identity-digest";sf);keyid="${kValidKeys['rfc']}";tag="sri", ` +
+                  `signature2=("identity-digest";sf);keyid="${kValidKeys['arbitrary']}";tag="sri"`,
   signature: `signature1=:${kScriptToExecute['signatures']['rfc']}:, ` +
              `signature2=:${kScriptToExecute['signatures']['arbitrary']}:`
 };
 const kMultiplySignedShouldBlock = {
   body: kScriptToBlock['body'],
   digest: `sha-256=:${kScriptToBlock['hash']}:`,
-  signatureInput: `signature1=("identity-digest";sf);alg="ed25519";keyid="${kValidKeys['rfc']}";tag="sri", ` +
-                  `signature2=("identity-digest";sf);alg="ed25519";keyid="${kValidKeys['arbitrary']}";tag="sri"`,
+  signatureInput: `signature1=("identity-digest";sf);keyid="${kValidKeys['rfc']}";tag="sri", ` +
+                  `signature2=("identity-digest";sf);keyid="${kValidKeys['arbitrary']}";tag="sri"`,
   signature: `signature1=:${kScriptToBlock['signatures']['rfc']}:, ` +
              `signature2=:${kScriptToBlock['signatures']['arbitrary']}:`
 };