Extracting the public key from the private key
up vote
1
down vote
favorite
I trying to accomplish step (2) in the following way programmatically:
1. openssl genrsa -out signing.pem 2048
2. openssl rsa -in signing.pem -outform PEM -pubout -out signing.pub.pem
Following is a simple function which reads the private key and tries to extract the public key.
But, I am facing difficulty in matching the 2nd step, as the programmatically generated public key is different from the openssl CLI based public key, I am sure there must some mistake, Please, help me.
Thanks
func main()
IN case anyone wants to check the code and play around then here's the link:
https://play.golang.org/p/rKerkh-31KI
ssl
go cryptography rsa edited Nov 9 at 8:02
Flimzy
36.8k96496
asked Nov 9 at 6:56
Invictus
97851536
add a comment |
up vote
1
down vote
favorite
I trying to accomplish step (2) in the following way programmatically:
1. openssl genrsa -out signing.pem 2048
2. openssl rsa -in signing.pem -outform PEM -pubout -out signing.pub.pem
Following is a simple function which reads the private key and tries to extract the public key.
But, I am facing difficulty in matching the 2nd step, as the programmatically generated public key is different from the openssl CLI based public key, I am sure there must some mistake, Please, help me.
Thanks
func main()
IN case anyone wants to check the code and play around then here's the link:
https://play.golang.org/p/rKerkh-31KI
ssl
go cryptography rsa edited Nov 9 at 8:02
Flimzy
36.8k96496
asked Nov 9 at 6:56
Invictus
97851536
add a comment |
up vote
1
down vote
favorite
up vote
1
down vote
favorite
I trying to accomplish step (2) in the following way programmatically:
1. openssl genrsa -out signing.pem 2048
2. openssl rsa -in signing.pem -outform PEM -pubout -out signing.pub.pem
Following is a simple function which reads the private key and tries to extract the public key.
But, I am facing difficulty in matching the 2nd step, as the programmatically generated public key is different from the openssl CLI based public key, I am sure there must some mistake, Please, help me.
Thanks
func main()
IN case anyone wants to check the code and play around then here's the link:
https://play.golang.org/p/rKerkh-31KI
ssl
go cryptography rsa edited Nov 9 at 8:02
Flimzy
36.8k96496
asked Nov 9 at 6:56
Invictus
97851536
I trying to accomplish step (2) in the following way programmatically:
1. openssl genrsa -out signing.pem 2048
2. openssl rsa -in signing.pem -outform PEM -pubout -out signing.pub.pem
Following is a simple function which reads the private key and tries to extract the public key.
But, I am facing difficulty in matching the 2nd step, as the programmatically generated public key is different from the openssl CLI based public key, I am sure there must some mistake, Please, help me.
Thanks
func main()
IN case anyone wants to check the code and play around then here's the link:
https://play.golang.org/p/rKerkh-31KI
ssl
go cryptography rsa ssl
go cryptography rsa edited Nov 9 at 8:02
Flimzy
36.8k96496
asked Nov 9 at 6:56
Invictus
97851536
edited Nov 9 at 8:02
Flimzy
36.8k96496
asked Nov 9 at 6:56
Invictus
97851536
edited Nov 9 at 8:02
Flimzy
36.8k96496
edited Nov 9 at 8:02
Flimzy
36.8k96496
edited Nov 9 at 8:02
Flimzy
36.8k96496
36.8k96496
asked Nov 9 at 6:56
Invictus
97851536
asked Nov 9 at 6:56
Invictus
97851536
asked Nov 9 at 6:56
Invictus
97851536
97851536
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
up vote
2
down vote
accepted
Use MarshalPKIXPublicKey
publicKeyDer, err := x509.MarshalPKIXPublicKey(&key.PublicKey)
if err != nil
log.Fatal(err)
Instead of
publicKeyDer := x509.MarshalPKCS1PublicKey(&key.PublicKey)
Playground
answered Nov 9 at 7:41
ssemilla
2,762423
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
2
down vote
accepted
Use MarshalPKIXPublicKey
publicKeyDer, err := x509.MarshalPKIXPublicKey(&key.PublicKey)
if err != nil
log.Fatal(err)
Instead of
publicKeyDer := x509.MarshalPKCS1PublicKey(&key.PublicKey)
Playground
answered Nov 9 at 7:41
ssemilla
2,762423
add a comment |
up vote
2
down vote
accepted
Use MarshalPKIXPublicKey
publicKeyDer, err := x509.MarshalPKIXPublicKey(&key.PublicKey)
if err != nil
log.Fatal(err)
Instead of
publicKeyDer := x509.MarshalPKCS1PublicKey(&key.PublicKey)
Playground
answered Nov 9 at 7:41
ssemilla
2,762423
add a comment |
up vote
2
down vote
accepted
up vote
2
down vote
accepted
Use MarshalPKIXPublicKey
publicKeyDer, err := x509.MarshalPKIXPublicKey(&key.PublicKey)
if err != nil
log.Fatal(err)
Instead of
publicKeyDer := x509.MarshalPKCS1PublicKey(&key.PublicKey)
Playground
answered Nov 9 at 7:41
ssemilla
2,762423
Use MarshalPKIXPublicKey
publicKeyDer, err := x509.MarshalPKIXPublicKey(&key.PublicKey)
if err != nil
log.Fatal(err)
Instead of
publicKeyDer := x509.MarshalPKCS1PublicKey(&key.PublicKey)
Playground
answered Nov 9 at 7:41
ssemilla
2,762423
answered Nov 9 at 7:41
ssemilla
2,762423
answered Nov 9 at 7:41
ssemilla
2,762423
answered Nov 9 at 7:41
ssemilla
2,762423
2,762423
add a comment |
add a comment |
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