@@ -305,7 +305,7 @@ func newSSHSigner(sshSigner ssh.Signer, algo Algorithm, dAlgo DigestAlgorithm, h
 
 	s, err := signerFromSSHSigner(sshSigner, string(algo))
 	if err != nil {
-		return nil, fmt.Errorf("no crypto implementation available for ssh algo %q", algo)
+		return nil, fmt.Errorf("no crypto implementation available for ssh algo %q: %s", algo, err)
 	}
 
 	a := &asymmSSHSigner{
@@ -346,7 +346,7 @@ func newSigner(algo Algorithm, dAlgo DigestAlgorithm, headers []string, scheme S
 	}
 	m, err := macerFromString(string(algo))
 	if err != nil {
-		return nil, fmt.Errorf("no crypto implementation available for %q", algo)
+		return nil, fmt.Errorf("no crypto implementation available for %q: %s", algo, err)
 	}
 	c := &macSigner{
 		m:            m,
Original file line number	Diff line number	Diff line change
`@@ -305,7 +305,7 @@ func newSSHSigner(sshSigner ssh.Signer, algo Algorithm, dAlgo DigestAlgorithm, h`
`305`	`305`
`306`	`306`	`s, err := signerFromSSHSigner(sshSigner, string(algo))`
`307`	`307`	`if err != nil {`
`308`		`- return nil, fmt.Errorf("no crypto implementation available for ssh algo %q", algo)`
	`308`	`+ return nil, fmt.Errorf("no crypto implementation available for ssh algo %q: %s", algo, err)`
`309`	`309`	`}`
`310`	`310`
`311`	`311`	`a := &asymmSSHSigner{`
`@@ -346,7 +346,7 @@ func newSigner(algo Algorithm, dAlgo DigestAlgorithm, headers []string, scheme S`
`346`	`346`	`}`
`347`	`347`	`m, err := macerFromString(string(algo))`
`348`	`348`	`if err != nil {`
`349`		`- return nil, fmt.Errorf("no crypto implementation available for %q", algo)`
	`349`	`+ return nil, fmt.Errorf("no crypto implementation available for %q: %s", algo, err)`
`350`	`350`	`}`
`351`	`351`	`c := &macSigner{`
`352`	`352`	`m: m,`