Use errors with stack traces

attributes.go

@@ -3,13 +3,12 @@ package irmago
 import (
 	"crypto/sha256"
 	"encoding/binary"
+	"encoding/hex"
 	"encoding/json"
-	"errors"
 	"math/big"
 	"time"
 
-	"encoding/hex"
-
+	"github.com/go-errors/errors"
 	"github.com/mhe/gabi"
 )
 

descriptions.go

@@ -3,7 +3,7 @@ package irmago
 import (
 	"encoding/xml"
 
-	"errors"
+	"github.com/go-errors/errors"
 )
 
 // SchemeManager describes a scheme manager.

keyshare.go

@@ -4,10 +4,10 @@ import (
 	"crypto/rand"
 	"crypto/sha256"
 	"encoding/base64"
-	"errors"
 	"math/big"
 	"strconv"
 
+	"github.com/go-errors/errors"
 	"github.com/mhe/gabi"
 )
 

manager.go

 package irmago
 
 import (
-	"errors"
-	"math/big"
-
 	"crypto/rand"
-
+	"math/big"
 	"sort"
 
 	"github.com/credentials/go-go-gadget-paillier"
+	"github.com/go-errors/errors"
 	"github.com/mhe/gabi"
 )
 

messages.go

@@ -3,10 +3,11 @@ package irmago
 import (
 	"encoding/base64"
 	"encoding/json"
-	"errors"
 	"fmt"
 	"math/big"
 	"strings"
+
+	"github.com/go-errors/errors"
 )
 
 // Status encodes the status of an IRMA session (e.g., connected).

oldprotocol.go

@@ -2,13 +2,12 @@ package irmago
 
 import (
 	"encoding/json"
-	"errors"
 	"math/big"
 
+	"github.com/go-errors/errors"
 	"github.com/mhe/gabi"
 )
 
-
 func (pki *publicKeyIdentifier) MarshalJSON() ([]byte, error) {
 	temp := struct {
 		Issuer  map[string]string `json:"issuer"`

requests.go

@@ -3,13 +3,13 @@ package irmago
 import (
 	"crypto/sha256"
 	"encoding/asn1"
-	"errors"
 	"fmt"
 	"log"
 	"math/big"
 	"strconv"
 	"time"
 
+	"github.com/go-errors/errors"
 	"github.com/mhe/gabi"
 )
 

storage.go

 package irmago
 
 import (
+	"crypto/rand"
+	"encoding/hex"
 	"encoding/json"
-	"errors"
 	"io/ioutil"
 	"os"
-
-	"crypto/rand"
-	"encoding/hex"
 	"path"
-
 	"time"
 
+	"github.com/go-errors/errors"
 	"github.com/mhe/gabi"
 )
 

updates.go

@@ -3,11 +3,11 @@ package irmago
 import (
 	"encoding/json"
 	"encoding/xml"
-	"errors"
 	"html"
 	"io/ioutil"
 	"math/big"
 
+	"github.com/go-errors/errors"
 	"github.com/mhe/gabi"
 )