Convert pfx to cer

Question

Is it possible to convert a  pfx  Personal Information Exchange  file to a  cer  Security Certificate  file  Unless I m mistaken  isn t a  cer somehow embedded inside a  pfx  I d like some way to extract it  if possible

User · Answer

PFX files are PKCS 12 Personal Information Exchange Syntax Standard bundles  They can include arbitrary number of private keys with accompanying X 509 certificates and a certificate authority chain  set certificates    If you want to extract client certificates  you can use OpenSSL s PKCS12 tool   openssl pkcs12 -in input pfx -out mycerts crt -nokeys -clcerts   The command above will output certificate s  in PEM format  The   crt  file extension is handled by both macOS and Window   You mention   cer  extension in the question which is conventionally used for the DER encoded files  A binary encoding  Try the   crt  file first and if it s not accepted  easy to convert from PEM to DER   openssl x509 -inform pem -in mycerts crt -outform der -out mycerts cer

User · Answer

Might be irrelevant for OP s Q  but I ve tried all openssl statements with all the different flags  while trying to connect with PHP  SoapClient      and after 3 days I finally found a solution that worked for me  GitBash   cd path to certificate    openssl pkcs12 -in personal certificate pfx -out public key pem -clcerts  First you have to enter YOUR CERT PASSWORD once  then DIFFERENT PASSWORD  twice  The latter will possibly be available to everyone with access to code  PHP  lt  php   wsdlUrl      quot https   example com service svc singlewsdl quot    publicKey    quot rel path to certificate public key pem quot    password     quot DIFFERENT PASSWORD  quot     params          local cert    gt   publicKey       passphrase    gt   password       trace    gt  1       exceptions    gt  0      soapClient   new  SoapClient  wsdlUrl   params    var dump  soapClient- gt   getFunctions

User · Answer

PFX files are PKCS 12 Personal Information Exchange Syntax Standard bundles  They can include arbitrary number of private keys with accompanying X 509 certificates and a certificate authority chain  set certificates    If you want to extract client certificates  you can use OpenSSL s PKCS12 tool   openssl pkcs12 -in input pfx -out mycerts crt -nokeys -clcerts   The command above will output certificate s  in PEM format  The   crt  file extension is handled by both macOS and Window   You mention   cer  extension in the question which is conventionally used for the DER encoded files  A binary encoding  Try the   crt  file first and if it s not accepted  easy to convert from PEM to DER   openssl x509 -inform pem -in mycerts crt -outform der -out mycerts cer

User · Answer

the simple way I believe is to import it then export it  using the certificate manager in Windows Management Console

User · Answer

If you re working in PowerShell you can use something like the following  given a pfx file InputBundle pfx  to produce a DER encoded  binary  certificate file OutputCert der   Get-PfxCertificate -FilePath InputBundle pfx    Export-Certificate -FilePath OutputCert der -Type CERT   Newline added for clarity  but you can of course have this all on a single line   If you need the certificate in ASCII Base64 encoded PEM format  you can take extra steps to do so as documented elsewhere  such as here  https   superuser com questions 351548 windows-integrated-utility-to-convert-der-to-pem  If you need to export to a different format than DER encoded  you can change the -Type parameter for Export-Certificate to use the types supported by  NET  as seen in help Export-Certificate -Detailed   -Type  lt CertType gt      Specifies the type of output file for the certificate export as follows        -- SST  A Microsoft serialized certificate store   sst  file format which can contain one or more certificates  This is the default value for multiple certificates        -- CERT  A  cer file format which contains a single DER-encoded certificate  This is the default value for one certificate        -- P7B  A PKCS 7 file format which can contain one or more certificates

User · Answer

PFX files are PKCS 12 Personal Information Exchange Syntax Standard bundles  They can include arbitrary number of private keys with accompanying X 509 certificates and a certificate authority chain  set certificates    If you want to extract client certificates  you can use OpenSSL s PKCS12 tool   openssl pkcs12 -in input pfx -out mycerts crt -nokeys -clcerts   The command above will output certificate s  in PEM format  The   crt  file extension is handled by both macOS and Window   You mention   cer  extension in the question which is conventionally used for the DER encoded files  A binary encoding  Try the   crt  file first and if it s not accepted  easy to convert from PEM to DER   openssl x509 -inform pem -in mycerts crt -outform der -out mycerts cer

User · Answer

I wanted to add a method which I think was simplest of all     Simply right click the pfx file  click  Install  follow the wizard  and add it to a store  I added to the Personal store    In start menu type certmgr msc and go to CertManager program   Find your pfx certificate  tabs at top are the various stores   click the export button and follow the wizard  there is an option to export as  CER     Essentially it does the same thing as Andrew s answer  but it avoids using Windows Management Console  goes straight to the import export

User · Answer

If you re working in PowerShell you can use something like the following  given a pfx file InputBundle pfx  to produce a DER encoded  binary  certificate file OutputCert der   Get-PfxCertificate -FilePath InputBundle pfx    Export-Certificate -FilePath OutputCert der -Type CERT   Newline added for clarity  but you can of course have this all on a single line   If you need the certificate in ASCII Base64 encoded PEM format  you can take extra steps to do so as documented elsewhere  such as here  https   superuser com questions 351548 windows-integrated-utility-to-convert-der-to-pem  If you need to export to a different format than DER encoded  you can change the -Type parameter for Export-Certificate to use the types supported by  NET  as seen in help Export-Certificate -Detailed   -Type  lt CertType gt      Specifies the type of output file for the certificate export as follows        -- SST  A Microsoft serialized certificate store   sst  file format which can contain one or more certificates  This is the default value for multiple certificates        -- CERT  A  cer file format which contains a single DER-encoded certificate  This is the default value for one certificate        -- P7B  A PKCS 7 file format which can contain one or more certificates

User · Answer

PFX files are PKCS 12 Personal Information Exchange Syntax Standard bundles  They can include arbitrary number of private keys with accompanying X 509 certificates and a certificate authority chain  set certificates    If you want to extract client certificates  you can use OpenSSL s PKCS12 tool   openssl pkcs12 -in input pfx -out mycerts crt -nokeys -clcerts   The command above will output certificate s  in PEM format  The   crt  file extension is handled by both macOS and Window   You mention   cer  extension in the question which is conventionally used for the DER encoded files  A binary encoding  Try the   crt  file first and if it s not accepted  easy to convert from PEM to DER   openssl x509 -inform pem -in mycerts crt -outform der -out mycerts cer

User · Answer

openssl rsa -in f pem -inform PEM -out f der -outform DER

User · Answer

the simple way I believe is to import it then export it  using the certificate manager in Windows Management Console

User · Answer

Might be irrelevant for OP s Q  but I ve tried all openssl statements with all the different flags  while trying to connect with PHP  SoapClient      and after 3 days I finally found a solution that worked for me  GitBash   cd path to certificate    openssl pkcs12 -in personal certificate pfx -out public key pem -clcerts  First you have to enter YOUR CERT PASSWORD once  then DIFFERENT PASSWORD  twice  The latter will possibly be available to everyone with access to code  PHP  lt  php   wsdlUrl      quot https   example com service svc singlewsdl quot    publicKey    quot rel path to certificate public key pem quot    password     quot DIFFERENT PASSWORD  quot     params          local cert    gt   publicKey       passphrase    gt   password       trace    gt  1       exceptions    gt  0      soapClient   new  SoapClient  wsdlUrl   params    var dump  soapClient- gt   getFunctions

User · Answer

I wanted to add a method which I think was simplest of all     Simply right click the pfx file  click  Install  follow the wizard  and add it to a store  I added to the Personal store    In start menu type certmgr msc and go to CertManager program   Find your pfx certificate  tabs at top are the various stores   click the export button and follow the wizard  there is an option to export as  CER     Essentially it does the same thing as Andrew s answer  but it avoids using Windows Management Console  goes straight to the import export

User · Answer

the simple way I believe is to import it then export it  using the certificate manager in Windows Management Console

User · Answer

the simple way I believe is to import it then export it  using the certificate manager in Windows Management Console

User · Answer

openssl rsa -in f pem -inform PEM -out f der -outform DER

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