diff --git a/pkg/api/webuiapi/webuiapi.go b/pkg/api/webuiapi/webuiapi.go
index c59418a70..77f8b331b 100644
--- a/pkg/api/webuiapi/webuiapi.go
+++ b/pkg/api/webuiapi/webuiapi.go
@@ -92,7 +92,7 @@ func (web *webUiApi) accessHandler(w http.ResponseWriter, req *http.Request) {
 	var user = config.User{}
 	user.Name = username
 
-	accesskey, err = keys.GetRandomAlphaNumeric(keys.MINIO_ACCESS_ID)
+	accesskey, err = keys.GenerateRandomAlphaNumeric(keys.MinioAccessID)
 	if err != nil {
 		w.WriteHeader(http.StatusInternalServerError)
 		w.Write([]byte(err.Error()))
@@ -100,7 +100,7 @@ func (web *webUiApi) accessHandler(w http.ResponseWriter, req *http.Request) {
 	}
 	user.AccessKey = string(accesskey)
 
-	secretkey, err = keys.GetRandomBase64(keys.MINIO_SECRET_ID)
+	secretkey, err = keys.GenerateRandomBase64(keys.MinioSecretID)
 	if err != nil {
 		w.WriteHeader(http.StatusInternalServerError)
 		w.Write([]byte(err.Error()))
diff --git a/pkg/utils/config/config_test.go b/pkg/utils/config/config_test.go
index 9178d4f04..8485cd1bb 100644
--- a/pkg/utils/config/config_test.go
+++ b/pkg/utils/config/config_test.go
@@ -46,8 +46,8 @@ func (s *MySuite) TestConfig(c *C) {
 	}
 	conf.configLock = new(sync.RWMutex)
 
-	accesskey, _ := keys.GetRandomAlphaNumeric(keys.MINIO_ACCESS_ID)
-	secretkey, _ := keys.GetRandomBase64(keys.MINIO_SECRET_ID)
+	accesskey, _ := keys.GenerateRandomAlphaNumeric(keys.MINIO_ACCESS_ID)
+	secretkey, _ := keys.GenerateRandomBase64(keys.MINIO_SECRET_ID)
 
 	user := User{
 		Name:      "gnubot",
@@ -62,8 +62,8 @@ func (s *MySuite) TestConfig(c *C) {
 	err = conf.ReadConfig()
 	c.Assert(err, IsNil)
 
-	accesskey, _ = keys.GetRandomAlphaNumeric(keys.MINIO_ACCESS_ID)
-	secretkey, _ = keys.GetRandomBase64(keys.MINIO_SECRET_ID)
+	accesskey, _ = keys.GenerateRandomAlphaNumeric(keys.MINIO_ACCESS_ID)
+	secretkey, _ = keys.GenerateRandomBase64(keys.MINIO_SECRET_ID)
 	user = User{
 		Name:      "minio",
 		AccessKey: string(accesskey),
diff --git a/pkg/utils/crypto/keys/common.go b/pkg/utils/crypto/keys/common.go
index 454d71681..07d52b293 100644
--- a/pkg/utils/crypto/keys/common.go
+++ b/pkg/utils/crypto/keys/common.go
@@ -16,9 +16,10 @@
 
 package keys
 
+// AccessID and SecretID length in bytes
 const (
-	MINIO_ACCESS_ID = 20
-	MINIO_SECRET_ID = 40
+	MinioAccessID = 20
+	MinioSecretID = 40
 )
 
 /// helpers
@@ -28,8 +29,8 @@ func isalnum(c byte) bool {
 	return '0' <= c && c <= '9' || 'A' <= c && c <= 'Z' || 'a' <= c && c <= 'z'
 }
 
-// validate access key for only alphanumeric characters
-func ValidateAccessKey(key []byte) bool {
+// IsValidAccessKey - validate access key for only alphanumeric characters
+func IsValidAccessKey(key []byte) bool {
 	for _, char := range key {
 		if isalnum(char) {
 			continue
diff --git a/pkg/utils/crypto/keys/keys.go b/pkg/utils/crypto/keys/keys.go
index 0a18b6054..ec6736212 100644
--- a/pkg/utils/crypto/keys/keys.go
+++ b/pkg/utils/crypto/keys/keys.go
@@ -23,13 +23,10 @@ import (
 
 // Static alphaNumeric table used for generating unique keys
 var alphaNumericTable = []byte("0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ")
-var alphaNumericTableFull = []byte("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789")
 
-/// helpers
-
-// Generate random alpha numeric value using only uppercase characters
+// GenerateRandomAlphaNumeric - generate random alpha numeric value using only uppercase characters
 // takes input as size in integer
-func GetRandomAlphaNumeric(size int) ([]byte, error) {
+func GenerateRandomAlphaNumeric(size int) ([]byte, error) {
 	alpha := make([]byte, size)
 	_, err := rand.Read(alpha)
 	if err != nil {
@@ -42,22 +39,8 @@ func GetRandomAlphaNumeric(size int) ([]byte, error) {
 	return alpha, nil
 }
 
-// Generate random alpha numeric value using all alphanumeric characters
-// takes input as size in integer
-func GetRandomAlphaNumericFull(size int) ([]byte, error) {
-	alphaFull := make([]byte, size)
-	_, err := rand.Read(alphaFull)
-	if err != nil {
-		return nil, err
-	}
-	for i := 0; i < size; i++ {
-		alphaFull[i] = alphaNumericTableFull[alphaFull[i]%byte(len(alphaNumericTableFull))]
-	}
-	return alphaFull, nil
-}
-
-// Generate random base64 numeric value from a random seed.
-func GetRandomBase64(size int) ([]byte, error) {
+// GenerateRandomBase64 - generate random base64 numeric value from a random seed.
+func GenerateRandomBase64(size int) ([]byte, error) {
 	rb := make([]byte, size)
 	_, err := rand.Read(rb)
 	if err != nil {
diff --git a/pkg/utils/crypto/keys/keys_test.go b/pkg/utils/crypto/keys/keys_test.go
index 47f8c0e5f..8d273f2a4 100644
--- a/pkg/utils/crypto/keys/keys_test.go
+++ b/pkg/utils/crypto/keys/keys_test.go
@@ -29,10 +29,10 @@ type MySuite struct{}
 var _ = Suite(&MySuite{})
 
 func (s *MySuite) Testing(c *C) {
-	value, err := GetRandomBase64(MINIO_SECRET_ID)
+	value, err := GenerateRandomBase64(MinioSecretID)
 	c.Assert(err, IsNil)
 
-	alphanum, err := GetRandomAlphaNumeric(MINIO_ACCESS_ID)
+	alphanum, err := GenerateRandomAlphaNumeric(MinioAccessID)
 	c.Assert(err, IsNil)
 
 	c.Log(string(value))
diff --git a/pkg/utils/crypto/signers/signers.go b/pkg/utils/crypto/signers/signers.go
index 9379afceb..4fb5853f4 100644
--- a/pkg/utils/crypto/signers/signers.go
+++ b/pkg/utils/crypto/signers/signers.go
@@ -32,7 +32,7 @@ import (
 	"github.com/minio-io/minio/pkg/utils/config"
 )
 
-// Sign a given http request using HMAC style signatures
+// SignRequest - a given http request using HMAC style signatures
 func SignRequest(user config.User, req *http.Request) {
 	if date := req.Header.Get("Date"); date == "" {
 		req.Header.Set("Date", time.Now().UTC().Format(http.TimeFormat))
@@ -49,7 +49,7 @@ func SignRequest(user config.User, req *http.Request) {
 	req.Header.Set("Authorization", authHeader.String())
 }
 
-// Validate an API request by validating its signature using HMAC signatures
+// ValidateRequest - an API request by validating its signature using HMAC signatures
 func ValidateRequest(user config.User, req *http.Request) (bool, error) {
 	// Verify if date headers are set, if not reject the request
 	if req.Header.Get("x-amz-date") == "" {
@@ -117,7 +117,7 @@ func hasPrefixCaseInsensitive(s, pfx string) bool {
 
 // Canonicalize amazon special headers, headers starting with 'x-amz-'
 func writeCanonicalizedAmzHeaders(buf *bytes.Buffer, req *http.Request) {
-	amzHeaders := make([]string, 0)
+	var amzHeaders []string
 	vals := make(map[string][]string)
 	for k, vv := range req.Header {
 		if hasPrefixCaseInsensitive(k, "x-amz-") {